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AK2307/LV SPEECH CODEC Digital telephone (5.0V/3.3V) GENERAL


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[AK2307/LV]
AK2307/LV
SPEECH CODEC Digital telephone (5.0V/3.3V)
GENERAL DISCREPTION AK2307/LV integrated with CODEC, Voice path control, amplifier Handset driver suitable PBX/KTS digital telephone, VoIP Telephone. CODEC compliant specification, very noise, power dissipation CODEC. A-law u-law selectable through Serial register. provides Long/Short frame format GCI. output 8bit compressed data along with 16bit linear format. Voice path block consists Tone generator, Volume both Analog inputs, outputs Handset speaker speaker hands-free conversation, path control switch. Side tone added internally volume controlled through serial I/F. FEATURES handset microphone integrated. handset driver extra driver headset receiver provided. Path control volume control serial programmable tone generator 5.0V+/-5%, 3.3V+/-0.3V single power supply noise, power consumption Package 28pin VSOP package Package size; 9.8*7.6mm(pin pin) pitch; 0.65mm
<AK2307/LV>
MS0190-E-04
BLOCK DIAGRAM
[AK2307/LV]
Handset HANDT4
HANDT1 HANDT2 HANDT3
upto +25dB VOL1 +14dB Amp1 +14dB +0dB Amp3
Digital Attenuator
steps -8dB
(Back ground Noise ATT)
steps -21dB
Linear
External MIC3
MIC1 MIC2 Amp2
Steps Side Tone Digital -57dB
Interface
16bit Linear A/u-law BCLK
CODEC
Digital Volume
DAOUT
RAIN
VOL2 steps -23dB
0dB/+3dB
VOL3 steps -23dB
0/-9dB
steps -21dB
Linear
Handset Receiver output
HANDR
150ohm Driver
VOL4 steps -45dB
SW10 150ohm Driver
Tone (DTMF-H)
Clock generator
PLLCAP
Headset Receiver output
HEADO
0dB/+3dB Amp5
L_ATT -2.5dB Tone (DMTF-L) Interface
SCLK DATA
0dB/+3dB
VOL5 steps -30dB
VREF
Voltage Reference
TAGND
Speaker output
Amp10
RAGND Driver AVDD AVSS DVDD DVSS EXRIN
<AK2307/LV>
MS0190-E-04
ASSIGNMENT
[AK2307/LV]
HANDR HEADO BCLK DATA SCLK AVDD MIC2 MIC1
VIEW
PLLCAP EXRIN RAIN DAOUT RAGND VREF AVSS TAGND HANDT3 HANDT2 HANDT1 HANDT4 MIC3
<AK2307/LV>
MS0190-E-04
CONDITIONS
[AK2307/LV]
types; NIN: Normal Input NOUT: Normal Output TOUT: Tri-state output AOUT: Analog output PWR: Power supply AIN: Analog Input Table Name HANDT2 HANDT3 HANDT1 HANDT4 HANDR MIC3 MIC2 MIC1 DAOUT RAIN HEADO EXRIN DATA SCLK BCLK DVSS DVDD AVSS AVDD PLLCAP TAGND RAGND VREF Type AOUT AOUT AOUT AOUT AOUT AOUT function load load comment
Analog input Handset microphone Analog input Handset microphone OPamp output Handset microphone Analog input converter Analog output Handset receiver 1000pF 150ohm Analog input converter Analog input External microphone Output External microphone amplifier Analog output converter Analog input voice path output Headset receiver 1000pF 150ohm output External Speaker Driver 20pF 10kohm External input Speaker pre-driver Data input internal register access 50pF Serial data clock internal register access Chip select input data serial input TOUT data serial output. Tri-state output 50pF clock input 8KHz frame sync signal input Power supply digital block:0V Power supply digital block: 3.3V Power supply Analog block:0V Power supply Analog block: 3.3V Output connect loop filter 1.0uF external AOUT Capacitance capacitance 1.0uF external AOUT side Analog ground output. capacitance 1.0uF external AOUT side Analog ground output capacitance 1.0uF external AOUT Voltage reference output capacitance
<AK2307/LV>
MS0190-E-04
ASAHI KASEI ABSOLUTE MAXIMUM RATINGS
Parameter Symbol Power Supply Voltages Analog/Digital Power Supply -0.3 Voltage -0.1 Digital Input Voltage -0.3 VDD+0.3 Analog Input Voltage -0.3 VDD+0.3 Input current (except power supply pins) Storage Temperature Tstg Warning: Exceeding absolute maximum ratings cause permanent damage. Normal operation guaranteed these extremes.
[AK2307/LV]
Units
RECOMMENDED OPERATING CONDITIONS
Parameter Symbol Power Supplies Analog/Digital power supply( AK2307LV) Analog/Digital power supply( AK2307) Ambient Operating Temperature Frame Sync Frequency Note) voltages reference ground VSS=0V 4.75 5.25 Units
<AK2307/LV>
MS0190-E-04
FUNCTIONAL DISCRIPTIONS
[AK2307/LV]
SERIAL INTERFACE
internal registers read/written serial interface which consists SCLK, DATA, pin. word consists 16bits. first 3bits instruction code which specifies read write. following 4bits specify address. rest 8bits data stored internal registers. Table1-A ADDRESS/DATA STRUCTURE
Instruction code
Address (4bit)
Data internal registers (8bit)
*)Dummy adjusting timing when reading register.
Table1-B INSTRUCTION CODE
Others
Read/Write Read Write action
Timing Serial Interface
SCLK DATA timing WRITE/READ operation
Input data loaded into internal shift register rising edge SCLK. rising edge SCLK counted after falling edge CSN. When more than SCLK pulses: [WRITE] Data loaded into internal register rising edge SCLK pulse. [READ] DATA becomes input falling edge SCLK pulse.
timing WRITE/READ CANCELLATION
WRITE cancelled when goes before rising edge SCLK pulse. READ cancelled when goes before falling edge SCLK pulse.
SERIAL WRITE/READ ACCESS timing (SERIAL ACCESS MODE)
Serial write read operation will done feeding another SCLK pulse data after write read operation. necessary make high between operation operation.
<AK2307/LV>
MS0190-E-04
WRITE Continuous SCLK
SCLK DATA
[AK2307/LV]
Goes anytime after SCLK 16th pulse before 32nd pulse
Instruction Code
Address "0000"
Write data address"000"
WRITE rising edge SCLK 16th pulse
Instruction Code
Write data
Burst SCLK SCLK stoped level level anytime during write cycle. After resuming SCLK, write cycle retrieved normally.
Goes anytime after SCLK 16th pulse 32nd pulse
SCLK DATA
Instruction Code
Address "0000"
Write data address "000"
WRITE rising edge SCLK 16th pulse
CANCELLATION
goes before rising edge 16th SCLK pulse
SCLK DATA
Instruction Code
Address "0000"
Write data address"000"
Write Excuted
DATA pin: Input mode (Hi-Z)
<AK2307/LV>
MS0190-E-04
SERIAL ACCESS Serial access done staying during serise write cycle.
SCLK DATA
[AK2307/LV]
Write data
Instruction Code
Address "0000"
Write data Address"000" EXCUTE!
Instruction Code
EXCUTED!
READ Continuous SCLK
going anytime after SCLK 16th pulse before 32nd pulse
SCLK DATA
Read Instruction
Address
Read Data
Read Instruction
Read Data
Data output starts falling edge SCLK pulse
Read period until earlier edge either rising SCLK 16th pulse falling
Burst SCLK
going anytime after SCLK 16th pulse before 32nd pulse
SCLK DATA
Read Data
Read Instruction
Address
Read output starts falling edge SCLK pulse
<AK2307/LV>
MS0190-E-04
SERIAL ACCESS Serial access done staying during serise read cycle
[AK2307/LV]
SCLK DATA
Read Instruction
Address "0000"
Read data READ EXCUTED!
Read Instruction READ EXCUTED!
DISCORD INSTRUCTION CODE
SCLK DATA
Address
IInstructions except specified (b=0
WRITE/READ EXCUTED!
DATA pin: Input mode (Hi-Z)
Register Register Type Read/ Write
(Hex) Register Name (Functions) Path Control Side PCM_1 PCM_0 u/A-law SW10 Path Control A_gain -9dB Tone Control Attenuator VOL1 Digital Volume Control Volume Side Tone Attenuator Digital Volume Control VOL4 Tone Volume Control Tone Freq. Select Tone Generator L-ATT Tone Freq. Select Tone Generator VOL2 Handset Volume Control VOL3 Headset Volume Control VOL5 Speaker Volume Control AGC_ON Falling time Rising time Threshold level Control Reserved test Address PCM_1/2 Selection interface Mode(Long/Short frame, AK130-1,AK130-2, 16bit linear) Address L-ATT -6dB attenuation Tone generator-L output case DTMF tone generation.
Bits which filled test mode activation. Please fill data normal operation. Bits which filled test write data from interface. case read operation, data read from interface.
<AK2307/LV>
MS0190-E-04
ASAHI KASEI Data Interface
[AK2307/LV]
AK2307/LV supports data interface modes. A/u-Law data mode( Long Short frame) This mode interface 64kbps data which compressed /extended -law u-law. Both Long frame short frame format data acceptable. data occupies first time slot data which specified frame sync signal. Please refer format diagram. Linear data Mode This mode interfaces linear data. CODEC AK2307/LV operates accuracy. bits fixed data stream. AK130 Mode This mode provides data Interface AK130, transceiver PBX/KTS system. format 64kbps A-law u-law data. timing between data different from -Law data mode written above. this mode data transmitted/received channel data channel AK130. AK130 Mode This mode provides data interface AK130 channel same manner AK130 Mode. every modes, digital voice data from clock 8KHz frame sync signal will BCLK respectively. order linear data first Table Summary interface modes
Mode
A/u-Law data mode 16bit Linear data mode AK130 mode AK130 mode
data format
A/u-Law 16bit Linear A/u-Law A/u-Law
BCLK rate
128K 2.048MHz 2.048MHz
frame signal
LF/SF auto select only AK130 signal AK130 signal
Time slot
Time slot first after signal xxth time slot 2.048MHz(B1 channel) xxth time slot 2.048MHz(B2 channel)
2-1. Selection interface mode
These four interface modes selectable through register which specified below. A/u-Law selection also selectable from same register effective A-law interface mode AK130 B1/B2 modes.
Register Name; Path Control
Register Type Read Write
Side Tone PCM_1 PCM_0
SW10
Default
PCM_10 interface mode select
PCM_1 PCM_0 Mode A/u-Law data mode 16bit Linear interface mode AK130 mode AK130 mode
u/A-law compress/Extend format select A/u-law Compress/Extend u-law
A-law
<AK2307/LV>
MS0190-E-04
Timing format interface
2-2-1 u/A-Law data Mode
[AK2307/LV]
bits data accommodated frame( 125us defined 8kHz frame sync signal. Although there time slots maximum 8kHz frame(when BCK=2.048MHz), data AK2307/LV occupies first time slot indicated figures below. 2-2-1-a Signals Frame Sync signal (FS) 8kHz reference signal. This signal indicated timing frame position 8kHz interface. internal clock generated based this signal. Clock (BCLK) BCLK defines data rate. BCLK varied from 64kHz 2.048MHz 64kHz step. data output (DX) output signal 64Kbps -law data. data synchronized BCLK which determines data rate. period which data occupied, turns -impedance output. long frame mode, turns Hi-impedance faster edge ether falling edge rising edge BCLK. data input (DR) input signal 64Kbps -law data. data clocked BCLK falling edge into block. 2-2-1-b LONG FRAME( SHORT FRAME Automatic selection AK2307/LV monitors duration level automatically selects interface format.
period FS="H" more than clocks clock
2-2-1-c Frame format interface Long Frame format
Interface format
BCLK
Short Frame format
BCLK
<AK2307/LV>
MS0190-E-04
2-2-2 Linear data mode
[AK2307/LV]
this mode linear data interfaced outside. This mode useful compress/extend data much higher compress rate algorithm than -law algorithm external DSP. AK2307/LV CODEC operates 14bit accuracy, thus least bits output fixed value. 2-2-2-a Signals Frame Sync signal (FS) 8kHz reference signal which same -law data mode. pulse level width should period which like short frame signal. Clock (BCLK) BCLK defines data rate. BCLK varied from 128kHz 2.048MHz 128kHz step which different from u/A-law data mode. data output (DX) output signal 128Kbps linear data. data synchronized BCLK which determines data rate. period which data occupied, turns -impedance output. data input (DR) input signal 128Kbps linear data. data clocked BCLK falling edge into block.
16bti Linear Frame format
125us (8KHz)
BCLK Hi-Z First First Hi-Z Hi-Z
2-2-3 AK130 B1/B2 Mode
These modes connecting interface AK130, TCM( ping-pong transceiver PBX/KTS system. data format A-law u-law which selected register. AK130 mode interfaces data channel which channels which AK130 provides, AK130 mode interfaces chann 2-2-3-a Signals Frame Sync signal (FS) Please feed signal which generated AK130.( pin#3 Clock (BCLK) BCLK defines data rate. Please 2.048MHz clock which generated AK130 E2o,pin#5 data output (DX) output signal 128Kbps linear data. Please connect data input AK130.( DSTi,pin#11 data input (DR) input signal 128Kbps linear data. data clocked BCLK falling edge into block. Please connect data output AK130.( DSTo,pin#6
<AK2307/LV>
MS0190-E-04
AK130 Mode
244ns 125us(8kHz) BCLK
16CLK
[AK2307/LV]
8CLK First
First
Hi-Z
Hi-Z
Note)*Don't care
AK130 Mode
244ns 125us(8kHz) BCLK
24CLK
8CLK First
First
Hi-Z
Hi-Z
Note)*Don't care
<AK2307/LV>
MS0190-E-04
ASAHI KASEI Path Gain Controls
3-1. Path control switches;
[AK2307/LV]
Voice path, gain control both side, tone control controlled from registers.
AK2307/LV analog switches control analog path. These switches controlled from following registers, Path control 1/2. Path Control Register Type Read Write[Address:0000 D7-D0:(SW8-SW1)] Default
Path Control Register Type Read Write[Address:0001 D6-D5,D1-D0:(RX_Pad, Side_Tone,SW10-SW9)] Side PCM_1 PCM_0 u-law SW10 _Apad _Pad Tone A-law Default
Table3-a Switch function
Name SW10 Function External voice input enable Speaker Tone output enable Speaker Voice path enable Speaker Tone output enable Headset Voice path enable Headset Tone output enable Handset Voice path enable Handset Tone output enable path enable Handset path enable Polarity External input path Internal Voice path Tone output Tone output Voice path Voice path Tone output Tone output Voice path Voice path Tone output Tone output Voice path Voice path Tone output Tone output input input Handset path Handset path
<AK2307/LV>
MS0190-E-04
Voice path gain Controls
[AK2307/LV]
AK2307/LV provides voice gain control functions both analog domain digital domain. These gain controlled from following five registers.
3-2-1. voice path gain controls side voice path three gain control blocks gain Pads. These gain stages controlled through following four registers, Path Control digital Volume control, handset control, Headset control speaker control. Path Control Register Type Read Write[Address:0001 D6-D5,D1-D0:(RX_Pad, Side_Tone,SW10-SW9)] Side PCM_1 PCM_0 u-law SW10 _Apad _Pad Tone A-law Default
RX_Apad Analog +3dB gain three voice output amps. This gain extra gain level diagram. This means, example, analog output will equivalent correspond -7dBm0 digital code when this gain enabled. However, please notice maximum analog output exceed which defined analog characteristics specification. three gain stages each output changed individually. Name Porarity Comment RX_Apad +3dB
default
RX_Pad; digital -9dB gain digital domain. This gain gain adjustment between in-system call external call. Name Porarity Comment RX_Pad -9dB
default
<AK2307/LV>
MS0190-E-04
Digital Volume Control Register Type Read Write[Address:0011 D7-D0(VTX3-VTX0, VSD_3-VSD_0)] VRX3 VRX2 VRX1 VRX0 VSD_3 VSD_2 VSD_1 VSD_0 Default VRX[3-0]; side digital volume from +6dB -21dB step. when VRX3=1 Gain[dB] VRX[2-0] (VRX[2-0]=1 VRX3=0 Gain[dB]
VRX3 VRX2 VRX1 VRX0 digital Attenuator -3dB -6dB -9dB -12dB -15dB -18dB -21dB +3dB +6dB
[AK2307/LV]
Comment level=0dBm0
default
applicable
<AK2307/LV>
MS0190-E-04
Handset Volume Control Register Type Read Write [Address:0111 D4-D0(V2_4-V2_0)] V2_4 V2_3 V2_2 default V2_1 V2_0
[AK2307/LV]
V2_[4-0]; Analog volume side Handset output. gain variable from -23dB step. Gain[ -V2[dB] (when V2<// V2_4 V2_3 V2_2 V2_1
V2_0
VOL2 -1dB -2dB -3dB -4dB -5dB -6dB -7dB -8dB -9dB -10dB -11dB -12dB -13dB -14dB -15dB -16dB -17dB 18dB -19dB -20dB -21dB -22dB -23dB
Comment level=0dBm0
default applicable
<AK2307/LV>
MS0190-E-04
Headset Volume Control Register Type Read Write [Address:1000 D4-D0(V3_4-V2_0)] V3_4 V3_3 V3_2 default V3_1 V3_0
[AK2307/LV]
V3_[4-0]; Analog volume side Headset output. gain variable from -23dB step. Gain[ -V3[dB] (when V2<// V3_4 V3_3 V3_2 V3_1
V3_0
VOL3 -1dB -2dB -3dB -4dB -5dB -6dB -7dB -8dB -9dB -10dB -11dB -12dB -13dB -14dB -15dB -16dB -17dB 18dB -19dB -20dB -21dB -22dB -23dB
Comment level=0dBm0
default
applicable
<AK2307/LV>
MS0190-E-04
Speaker Volume Control Register Type Read Write [Address:1001 D4-D0(V5_4-V5_0)] V5_3 V5_2 default V5_1 V5_0
[AK2307/LV]
V5_[4-0]; Analog volume side Speaker output. gain variable from -30dB step. Gain[ V5[dB] (when V2<// V5_3 V5_2 V5_1 V5_0
VOL5 -2dB -4dB -6dB -8dB -10dB -12dB -14dB -16dB -18dB -20dB -22dB -24dB -26dB -28dB -30dB
Comment level=0dBm0
default
<AK2307/LV>
MS0190-E-04
3-2-2. voice path gain controls
[AK2307/LV]
side voice path gain control blocks. analog volume other digital attenuator after converter. These voice path gains controlled through following regi ster.
Voice Path Gain Control digital Attenuator, Register Type Read Write[Address:0010 D6-D0: (VTX2-VTX0, V1_3-V1_0)] VTX2 VTX1 VTX0 V1_3 V1_2 V1_1 default
V1_0
VTX[2-0]; digital attenuator side voice path. gain variation from -21dB step. Gain[dB] VTX( step
VTX2 VTX1 VTX0 voice path digital Attenuator -3dB -6dB -9dB -12dB -15dB -18dB -21dB default Comment level=0dBm0
V1_[3-0]; analog volume side voice path. variable range from -8dB +7dB Gain[dB] step
V1_3 V1_2 V1_1 V1_0 VOL1 voice path analog volume -8dB -7dB -6dB -5dB -4dB -3dB -2dB -1dB +1dB +2dB +3dB +4dB +5dB +6dB +7dB level=0dBm0 Comment default
<AK2307/LV>
MS0190-E-04
[AK2307/LV]
3-2-3. Side Tone path gain controls AK2307/LV provides side tone pass from digital domain. activation this pass through Path Control register( address=0) side tone attenuation controled
through Digital volume control" register( address=2).
Path Control Register Type Read Write[Address:0001 D6-D5,D1-D0:(RX_Pad, Side_Tone,SW10-SW9)] Side PCM_1 PCM_0 u-law SW10 _Apad _Pad Tone A-law Default
Side Tone; pass enable side tone from Name Porarity Side Tone
Comment
default
Side Tone digital attenuator gain Register Type Read Write[Address;0011 D7-D0:(VTX3-VTX0, VSD_3-VSD_0)] VRX3 VRX2 VRX1 VRX0 VSD_3 VSD_2 VSD_1 VSD_0 default VSD_[3-0]; Side tone digital Attenuator. gain variation range from -12dB -57dB. Gain[dB]
VSD_3 VSD_2 VSD_1 VSD_0 Side Tone digital Attenuator gain -12dB -15dB -18dB -21dB -24dB -27dB -30dB -33dB -36dB -39dB -42dB -45dB -48dB -51dB -54dB -57dB default Comment
<AK2307/LV>
MS0190-E-04
ASAHI KASEI Tone generator
[AK2307/LV]
AK2307/LV tone generators generate service tone, DTMF tone melody tone. Each generator select tone frequencies individ ually, they added each other before output from receiver path. After adding stage there gain stage attenuate tone level from -45dB step. DTMF frequency tone, there another attenuator attenuate -2.5dB which from register. signal format stepwise pseudo sine wave. When tone frequency changed, frequency changed cross point tone prevent switching noise.
4-1. Tone frequency select
tone frequencies generator generator-L selected individually from different registers, "Tone generator H-frequency select" "Tone generator L-frequency select". There kind parameters select tone frequency. select fundamental frequency another select dividing ratio fundamental frequency final tone frequency. example, when 1600Hz selected fundamental frequency number selec dividing factor, then final tone frequency shall 400Hz. Tone generator H-frequency select Register Type Read Write[Address=0101:
D5-D0:(DIVH_1-DIVH_0, TH_3-TH_0)]
default
DIVH_1
DIVH_0
TH_3
TH_2
TH_1
TH_0
Tone generator L-frequency select Register Type Read Write[Address=0110
D6-D0: (LT_ATT, DIVL_1-DIVL_0, TL_3-TL_0)]
default
LT_ATT
DIVL_1
DIVL_0
TL_3
TL_2
TL_1
TL_0
TH_[3-0] TL_[3-0]; select bits fundamental frequency tone generator tone generator-L, respectively.
Fundamental frequencies Tx_3 Tx_2 Tx_1 Tx_0 Fundamental frequency( mute 1600.00 1471.26 1391.30 1333.33 1207.55 1174.31 1049.18 1000.00 941.18 888.89 853.33 785.28 771.08 727.27 571.43
<AK2307/LV>
MS0190-E-04
Tone frequency fundamental frequency dividing factor.
[AK2307/LV]
DIVH_[1-0] DIVL_[1-0]; dividing factor fundamental frequency final tone frequency.
Dividing factor DIVx_1 DIVx_0 dividing factor
DIVx DIVH DIVL
Tone frequency list;
Fundamental Freq. (TH,TL3-0) Code Fundamental Freq(Hz) Mute 1600.00 1471.26 1391.30 1333.33 1207.55 1174.31 1049.18 1000.00 941.18 888.89 853.33 785.28 771.08 727.27 571.43 1(Hz) 1600.00 1471.26 1391.30 1333.33 1207.55 1174.31 1049.18 1000.00 941.18 888.98 853.33 785.28 771.08 727.27 571.43
Dividing factor(DIVH/L1-0) 1/2(Hz) 800.00 735.63 695.65 666.67 603.78 587.16 524.59 500.00 470.59 444.49 426.67 392.64 385.54 363.64 285.72 1/4(Hz) 400.00 367.82 347.83 333.33 301.89 293.58 262.30 250.00 235.30 222.25 213.33 196.32 192.77 181.82 142.86
<AK2307/LV>
MS0190-E-04
functional category tone Category Nominal freq. Fundamental Freq(Hz) Melody 1397 1391.3 1318 1333.33 1175 1174.31 1046 1049.18 1000 882.76 785.28 1391.3 1333.33 1174.31 1049.18 1000 882.76 785.28 DTMF 1391.3 771.08 853.33 941.18 1209 1207.55 1336 1333.33 1477 1471.26 Misc. 727.27 4k/n 4k/16=250 1000 4k/12=333.33 1333.33 4k/11=363.64 727.27 4k/10=400 1600 4k/9 =444.44 888.89 4k/8 =500 1000 4k/7 =571.43 571.43 4k/6 =666.67 1333.33 4k/5 =800 1600 4k/4 =1000 1000 Misc. 1391.3 882.76 1174.31 1391.3 1600 1600 Dividing Factor Tx_[3-0] Code 0011 0100 0110 0111 1000 1010 1100 0011 0100 0110 0111 1000 1010 1100 0011 1101 1011 1001 0101 0100 0010 1110 1000 0100 1110 0001 1010 1000 1111 0100 0001 1000 0011 1010 0110 0011 0001 DIVx_[1-0] Code
[AK2307/LV]
error (Typ) -0.4% +1.1% -0.1% +0.3% +1.2% +0.3% +0.2% -0.3% +1.2% 0.0% +0.3% +1.2% +0.3% +0.2% -0.2% +0.1% +0.2% ±0.0% -0.1% -0.2% -0.4% +0.2% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% -0.6% +0.3% -2.1% +2.3% 0.0% Comment Fa'' Mi'' Re'' Do'' High High High
<AK2307/LV>
MS0190-E-04
Tone volume control
[AK2307/LV]
volume control tone done through "Tone Volume Control" register. gain changed after tones added, thus signal level tone always same. Only -ATT "Tone generator L-frequency select" register change signal level between tones -2.5dB. Tone generator L-frequency select Register Type Read Write[Address=0110
D6-D0: (LT_ATT, DIVL_1-DIVL_0, TL_3-TL_0)]
default
LT_ATT
DIVL_1
DIVL_0
TL_3
TL_2
TL_1
TL_0
LT_ATT; Attenuation frequency tone generator. LT_ATT DTMF frequency(Tone generator
Comments default
-2.5dB Gain error LT_ATT +/-1.0dB worst case. this case, LT_ATT irregular from DTMF standard. Tone Volume Control (vol Register Type Read Write[Address=0100:
D3-D0: (V4_3-V4_0)]
default
V4_3
V4_2
V4_1
V4_0
V4_[3-0]; Tone volume control.( Volume4 gain range from -45dB step. Gain[dB]
V4_3
V4_2
V4_1
V4_0
VOL4 Tone volume control -3dB -6dB -9dB -12dB -15dB -18dB -21dB -24dB -27dB -30dB -33dB -36dB -39dB -42dB -45dB
Comment
default
<AK2307/LV>
MS0190-E-04
ASAHI KASEI Power Reset
[AK2307/LV]
Power Reset AK2307/LV automatically generates internal reset pulse which resets circuit that necessary start initialization after power set. registers default value. After internal reset pulse generated, CODEC starts initialization procedure being signal, takes 150ms(typ.), 330ms(max) complete initialization after detection power Power slope enable Power-on Reset When power-up slope longer than 50ms(=5tau:tau time constant), Power Reset works normally. When time longer than 50ms, Power Reset activated internal regist initialized. this case registers must written through interface. NOTE) stable operation after power recommend write register value through interface case after power Recommended start procedure following start procedure recommended when AK2307/LV going power
Power
FS="L" BCLK="L"
During this stage, BCLK must tied receive transmit data from/to external devices.
Wait 200ms
case rising time =50ms(=5tau)
Write data internal register through serial
Write data internal register before CODEC starts working.
Supply BCLK
CODEC Initialization starts. Wait 250ms (min:130ms) CODEC Initialization complete. CODEC starts working
<AK2307/LV>
MS0190-E-04
ASAHI KASEI ELECTRICAL CHARACTERISTICS
[AK2307/LV]
Unless otherwise noted, guaranteed VDD=+5.0V+/-5%(AK2307), VDD=+3.3V+/-0.3V(AK2307LV), FS=8kHz.
Characteristics
Parameter Power Consumption BCLK=2048kHz Output High Voltage (CMOS level) Output Voltage (CMOS level) Input High Voltage1 (CMOS level) Input Voltage1 (CMOS level) Input Leakage Current Input Capacitance Input Leakage Current Output Leakage Current Symbol Conditions Note1) VIH1 VIL1 IOH=-1.6mA IOL=1.0mA 0.7VDD 0.3VDD VDD-0.5 Units
Tri-state mode
*Note1) output unloaded. 1020Hz@0dBm0 sine wave from HANDT2/3, loopbacked. volume gain tone generator off. handset receiver paths only active.
<AK2307/LV>
MS0190-E-04
Characteristics
[AK2307/LV]
Note) Otherwise specified, Ta=-10+70 degree, VDD=5.0V 5%(AK2307),VDD=3.3V +/0.3V(AK2307LV), VSS=0V, FS=8kHz assumed. timing parameters measured VOH=VDD-0.5, VOL=0.4V. Interface u/A-law modeLong Frame ,Short Frame Linear mode
Items frequency BCLK frequency Note1) Clock width Falling/rising time Output delay Setup time Hold time level width Name BCLK BCLK FS,BCLK,DR Parm. FBCLK TDX2 TFSS TDRS TFSH TDRH TWLFS Conditions Cl=50pF Cl=50pF 128K Unit BCLK
Note1Short Frame:64 (N=1 32), Long Frame:64 kHz(N=1 32), Linear mode:128 kHz(N=1to
AK130 B1ch/B2ch mode
Items frequency Clock frequency Pulse width Falling/Rising time Output delay Setup time Hold time Name BCLK BCLK FS,BCLK,DR Parm. FBCLK TDX2 TFSS TDRS TFSH TDRH Conditions CL=50pF CL=50pF Unit
2.048
u/A-law modeShort Frame Linear mode
TFSH TFSS TFSH TFSS
BCLK
FBCLK TDX2
TDRS TDRH
<AK2307/LV>
MS0190-E-04
modeLong Frame
FWLFS TFSH TFSS TFSH
[AK2307/LV]
BCLK
TDX2
TDRS TDRH
AK130 B1ch/B2ch mode
TFSH TFSS TFSH TFSS
BCLK
FBCLK TDX2
TDRS TDRH
<AK2307/LV>
MS0190-E-04
Items SCLK frequency SCLK pulse width Falling/rising time Output delay Setup time Hold time Name SCLK SCLK CSN,SCLK DATA DATA DATA DATA Parm. FSCLK TDA2 TCSS TDAS TCSH TDAH Conditions CL=15pF CL=15pF
[AK2307/LV]
Unit
Data write cycle
TCSH TCSH
SCLK
FSCLK TDAH
DATA
Data read cycle
TCSH TDA2
SCLK
FSCLK TDAH
DATA
Instruction code, Address write Data read
<AK2307/LV>
MS0190-E-04
CODEC
Absolute Gain (AK2307:VDD=5.0V +/-5%, AK2307LV:VDD=3.3V +/-0.3V Parameter Conditions Analog Input Level HANDT4 AK2307LV MIC3 AK2307 1020Hz 0dBm0 input Absolute Transmit Gain u/A-law -1.5 Analog Output Level DAOUT AK2307LV 1020Hz 0dBm0 input AK2307 Absolute Receive Gain u/A-law -1.5 Maximum Overload Level DAOUT AK2307LV +3.14dBm0 input AK2307 Gain Tracking Parameter Transmit Gain Tracking Error
[AK2307/LV]
0.101 0.162 0.482 0.771 0.694 1.107
Units Vrms Vrms Vrms
+1.5
+1.5
Conditions Reference Level: -51dBm0 ~-46dBm0 -10dBm0 -46dBm0 ~-36dBm0 1020Hz Tone -36dBm0 0dBm0 Receive Gain Tracking Error Reference Level: -51dBm0 ~-46dBm0 -10dBm0 -46dBm0 ~-36dBm0 1020Hz Tone -36dBm0 0dBm0 characteristics from MIC3 path guaranteed design. Frequency Response Parameter Transmit Frequency Response HANDT4 MIC3 Receive Frequency Response DAOUT
-0.9 -0.6 -0.4 -0.9 -0.6 -0.4
Units
Conditions Relative 0.06kHz 0dBm0@1020Hz 0.2kHz ~3.0kHz 3.4kHz 3.78kHz Relative 0.3K ~3.0kHz 0dBm0@1020Hz 3.4kHz 3.78kHz
-0.3 -0.3
Units
Distortion Parameter Conditions Transmit Signal Distortion 1020Hz Tone -36dBm0 ~-41dBm0 -26dBm0 ~-36dBm0 HANDT4 0dBm0 ~-26dBm0 MIC3 Receive Signal Distortion 1020Hz Tone -36dBm0 ~-41dBm0 -26dBm0 ~-36dBm0 DAOUT 0dBm0 ~-26dBm0 Note) C-message Weighted u-Law, Psophometric Weighted A-Law Note) characteristics from MIC3 path guaranteed design.
Units
<AK2307/LV>
MS0190-E-04
Noise
[AK2307/LV]
Parameter Conditions Units Idle Channel Noise u-law, C-message dBrnC0 HANDT2,3 A-law, Psophometric dBm0p MIC2 Idle Channel Noise u-law, C-message dBrnC0 A-law, Psophometric dBm0p DAOUT Idle Channel Noise u-law, C-message dBrnC0 A-law, Psophometric dBm0p HANDR1 Note Analog Input Analog Ground. gain Handset input assumed +25dB. SCLK supplied. specification pass guaranteed design. Note Digital Input(DR) Code Interchannel Crosstalk Parameter Transmit Receive HANDT4 DAOUT MIC3 DAOUT Receive Transmit voice path Volume Parameter Step margin
Conditions 0dBm0@HANDT4, Idle code@DR
Units
0dBm0 code@DR, HANDT4 Vrms
Volume VOL2 VOL3 VOL5 -22dB VOL5 -30dB
Conditions 1020Hz 0dBm0 input Relative 1020Hz 0dBm0 input Relative 1020Hz 0dBm0 input Relative 1020Hz 0dBm0 input Relative
-1.0 -1.0 -1.0 -1.5
Unit
+1.0*) +1.0*) +1.0
+1.5*)
*)Monotonus increase/decrease guaranteed
voice path Volume Parameter Step margin Volume VOL1 Conditions 1020Hz 0dBm0 input Relative -1.0 Unit
+1.0*)
*)Monotonus increase/decrease guaranteed
Tone Volume Parameter Step margin Volume VOL4 Gain error Conditions Output; HANDR1 1600Hz tone level;VOL4=0dB L-ATT=-2.5dB -24dB -1.0 Unit
+1.0 +2.0*) +1.0
-45dB -2.0 -1.0
L-ATT
*)Monotonus increase/decrease guaranteed
<AK2307/LV>
MS0190-E-04
OP-AMPs Note) Otherwise specified, VOL2 gain. Handset receiver
[AK2307/LV]
Conditions Unit RAIN AK2307LV (150ohm load) Vp-p (75ohm load) HANDR1 SINAD<40d AK2307 (150ohm load) 1020Hz (75ohm load) Note) when HANDR1 HEADO used differential output receiver, load impedance each output calculated ohm. Maximum output level Headset receiver Conditions Unit AK2307LV (150ohm load) Vp-p (75ohm load) AK2307 (150ohm load) (75ohm load) Note) when HANDR1 HEADO used differential output receiver, load impedance each output calculated ohm. Speaker output Conditions Unit Maximum output RAIN, EXRIN AK2307LV Vp-p level SPO*) SINAD<40dB, AK2307 1020Hz *NoteA Characteristics from EXRIN input guaranteed design. Maximum output level RAIN HEADO SINAD<40d 1020Hz Handset input Maximum output level HANDT1 SINAD<40 gain=25dB 1020Hz Conditions AK2307LV AK2307 Inverting amplify 0.411 0.660 Unit Vp-p
Maximum gain
input Maximum output level Conditions MIC1 AK2307LV SINAD<40 AK2307 Gain=25dB 1020Hz Inverting amplify 0.411 0.660 Unit Vp-p
Maximum gain
<AK2307/LV>
MS0190-E-04
Tone signal Output level Output level path Conditions HANDR AK2307LV HEADO AK2307 1600Hz VOL4=0dB AK2307/LV 1049Hz VOL4=0dB
[AK2307/LV]
Unit mVrms
Output level path
dBm0
Input Impedance EXRINRAIN HANDT4MIC3
100K
150K
Unit
<AK2307/LV>
MS0190-E-04
ASAHI KASEI APPLICATION CIRCUIT EXAMPLE
Handset Input Stage HANDT4
0.1uF 100pF 1.0uF 1.2K
[AK2307/LV]
HANDT1 HANDT2 HANDT3
1.0uF
1.2K
100pF
TAGND
1.0uF
Input Stage MIC3
0.1uF
100pF
MIC1 MIC2
1.0uF
1.2K
TAGND Handset Receiver output Stage Single Output
0.1uF
DAOUT RAIN Differential Output
0.001uF 10uF
HANDR
HANDR
HEADO
0.001uF
<AK2307/LV>
MS0190-E-04
Speaker Output Stage
100pF 100K
[AK2307/LV]
0.1uF Internal RAGND
Analog Ground, PLLCAP VREF
1.0uF
TAGND
1.0uF
RAGND
1.0uF
PLLCAP
1.0uF
Power Supplies
10uF 0.1uF
AVDD
10uF 0.1uF
AVSS
<AK2307/LV>
MS0190-E-04
PACKAGE 28pin VSOP Marking Pin#1 indicator Date code: Marketing code: Logo
[AK2307/LV]
XXXXX5digit AK2307LV/AK2307
AK2307LV
AK2307LV XXXXX
XXXXX: AK2307
Date Code Lot#
AK2307 XXXXX
XXXXX:
Date Code Lot#
<AK2307/LV>
MS0190-E-04
Package dimensions
[AK2307/LV]
28pin VSOP (Unit:
*9.8±0.2
7.6±0.2 0.15+0.10 -0.05 0.10±0.05 Detail 0-10° 0.5±0.2
MS0190-E-04
0.65
0.12
0.22+0.10 -0.05
Seating Plane 0.08
NOTE: Dimension does include mold flash.
<AK2307/LV>
1.15± 0.10
[AK2307/LV]
IMPORTANT NOTICE These products their specifications subject change without notice. Before considering application, consult Asahi Kasei Microsystems Co., Ltd. (AKM) sales office authorized distributor concerning their current status. assumes liability infringement patent, intellectual property, other right application information contained herein. export these products, devices systems containing them, require export license other official approval under regulations country export pertaining customs tariffs, currency exchange, strategic materials. products neither intended authorized critical components safety, life support, other hazard related device system, assumes responsibility relating such use, except with express written consent Representative Director AKM. used here: hazard related device system designed intended life support maintenance safety applications medicine, aerospace, nuclear energy, other fields, which failure function perform reasonably expected loss life significant injury damage person property. critical component whose failure function perform reasonably expected result, whether directly indirectly, loss safety effectiveness device system containing which must therefore meet very high standards performance reliability. responsibility buyer distributor product distributes, disposes otherwise places product with third party notify that party advance above content conditions, buyer distributor agrees assume responsibility liability hold harmless from claims arising from said product absence such notification. <AK2307/LV> MS0190-E-04

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