3-channel Video Buffer with Built-in wideband SM5309B 3-channel v
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SM5309B
3-channel Video Buffer with Built-in wideband
SM5309B 3-channel video buffer with built-in 5th-order lowpass filters. lowpass filter cutoff frequency range adjust from 4MHz 40MHz*1 steps. lowpass filter supports 480i 1080i format, video signal equipment analog input/outputs. video input systems, device functions next-stage system anti-aliasing filter. video output systems, filter reduces video aliasing external noise drive terminating resistance. cutoff frequency signal input type controlled using I2C-BUS*2, slave address (3-state input) allow three SM5309B same bus.
When resistor connected ISET (RISET) 1.8k. I2C-BUS registered trademark B.V.
FEATURES
PINOUT
(Top view)
Supply voltages Analog: 4.75 5.25V I2C-BUS interface: 5.5V Lowpass filter with adjustable cutoff frequency (256 steps) Cutoff frequency range: 4MHz 40MHz (RISET 1.8k) Filter bypass mode function display specifications SXGA resolution Passband: 80MHz (typ) Half mode switch function (CH-2, CH-3) suitable component signals 2-system input multiplexer function (switchable using I2C-BUS MUXSEL input) Video input pins independently synctip clamp/bias/direct inputs terminating resistance drive capability Output gain: Power-down function current consumption when power-down I2C-BUS interface control Slave address: 90h, 92h, three devices used simultaneously, selected input) Data transfer rate: Fast mode 400kbit/s) Operating ambient temperature range: 70°C Package: 24-pin VSOP
IN1A IN1B ISET IN2A IN2B IN3A IN3B MUXSEL
REF1 REF2 OUT1 OUT2 OUT3
PACKAGE DIMENSIONS
(Unit:
0.15 0.05
1.15
HDTVs PDPs Projectors
0.10 0.05
0.65
ORDERING INFORMATION
Device SM5309BV Package 24-pin VSOP
0.10
0.22 0.05
0.12
SEIKO CORPORATION
APPLICATIONS
SM5309B
BLOCK DIAGRAM
MUXSEL
ISET REF1
Control
Vref Current Source
REF2
Bypass IN1A IN1B
Clamp/Bias/Direct Clamp/Bias/Direct
OUT1
Order
Filter
CH-1
Bypass IN2A IN2B
Clamp/Bias/Direct Clamp/Bias/Direct
OUT2
Order
Filter
CH-2
Bypass IN3A IN3B
Clamp/Bias/Direct Clamp/Bias/Direct
OUT3
Order
Filter
CH-3
Note. recommended value external resistor (RISET) connected ISET 1.8k.
SEIKO CORPORATION
SM5309B
DESCRIPTION
Number Name IN1A IN1B ISET IN2A IN2B IN3A IN3B MUXSEL OUT3 OUT2 OUT1 REF2 REF1 I/O*1 A/D*2 Description Video signal input (CH-1, input Video signal input (CH-1, input Ground Internal current-setting resistor (RISET) connection (standard 1.8k) connection Video signal input (CH-2, input Video signal input (CH-2, input Analog supply Video signal input (CH-3, input Video signal input (CH-3, input Input multiplexer switch control (GND): INnA select (VCC): INnB select I2C-BUS clock signal input I2C-BUS data signal input/output I2C-BUS interface supply Ground Video signal output (CH-3) Analog supply Video signal output (CH-2) Ground Video signal output (CH-1) Analog supply Internal reference voltage Internal reference voltage I2C-BUS slave address select (3-state input) (GND): (VCC): Open:
input, output analog, digital
SEIKO CORPORATION
SM5309B
EQUIVALENT CIRCUITS
Number Name I/O*1 Equivalent circuit
IN1A IN1B IN2A IN2B IN3A IN3B
INnA INnB
OUT1 OUT2 OUT3
OUTn
REF1
REF1
REF2
REF2
SEIKO CORPORATION
SM5309B
Number Name I/O*1 Equivalent circuit
MUXSEL
MUXSEL
input, output Note. Resistance values equivalent circuits indicate design values.
SEIKO CORPORATION
SM5309B
SPECIFICATIONS
Absolute Maximum Ratings
Parameter Supply voltage Input voltage Storage temperature range Power dissipation*1 Junction temperature*1 Symbol TSTG VCC, ADS, SDA, SCL, Condition Rating Unit
80°C, when mounted NPC's regulation substrate (110 1.6mm double layer glass-epoxy substrate with 160% wiring factor)
Recommended Operating Conditions
Parameter Supply voltage Supply voltage Operating ambient temperature Symbol Condition Rating 4.75 5.25 Unit
Note. should applied simultaneously.
Electrical Characteristics
Characteristics 5.0V, 5.5V, 25°C, 100kHz, 1.0Vp-p, RISET 1.8k, CH-1 clamp input, CH-2 CH-3 bias input, FCDATA 227, unless otherwise noted.
Rating Parameter Current consumption Current consumption Current consumption Current consumption HIGH-level input voltage LOW-level Input voltage ADS, MUXSEL HIGH-level input voltage ADS, MUXSEL LOW-level input voltage open-circuit input voltage LOW-level input leakage current HIGH-level input leakage current output voltage Symbol ICC1 ICC2 ICC3 ICC4 VIH1 VIL1 VIH2 VIL2 VOPEN Condition Filter mode, FCDATA Filter mode, FCDATA Filter bypass mode Power-down mode SDA, SDA, ADS, MUXSEL ADS, MUXSEL SDA, SCL, SDA, SCL, output, Sink current VCC/2 VCC/2 Unit Test level
Total current consumption VDD, when input signals.
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SM5309B Characteristics (I2C-BUS) 5.0V, 5.5V, 25°C, unless otherwise noted.
Rating Parameter clock frequency hold time (start condition) clock LOW-level pulsewidth clock HIGH-level pulsewidth setup time (start condition) data hold time data setup time SDA, rise time SDA, fall time setup time (stop condition) SDA, input capacitance Symbol fSCL tHD;STA tLOW tHIGH tSU;STA tHD;DAT tSU;DAT tSU;STO Condition Unit Test level
tLOW
tSU;DAT
tHD;STA
tHD;STA
tHD;DAT
tHIGH
tSU;STA
tSU;STO
Note. start condition, stop condition
SEIKO CORPORATION
SM5309B Analog Characteristics
Analog input characteristics
5.0V, 5.5V, 25°C, 100kHz, 1.0Vp-p, RISET 1.8k, CH-1 clamp input, CH-2 CH-3 bias input, FCDATA 227, unless otherwise noted. Internal mode settings shown table "Mode Condition Settings".
Rating Parameter Clamp voltage Bias voltage Input resistance Filter mode input voltage Symbol VCLMP VBIAS RBIAS VAI1 VAI2 Bypass mode input voltage Direct mode input voltage range VAI3 VAI4 VIDC Condition Clamp input, signal input Bias input, signal input Bias input Mode: (bias), 1.0% Mode: (clamp), 1.0% Mode: (bias), 1.0% Mode: (clamp), 1.0% Direct mode, 1.5%, 1.4Vp-p Vp-p Vp-p Vp-p Vp-p Unit Test level
Note. This item represents values maximum input signal amplitude which output distortion rate shown condition column filled. When signal amplitude that exceeds this specification value input, output distortion rate deteriorated. When using this device, input signal level should exceed standard value signal amplitude.
Filter mode bypass mode frequency characteristics
5.0V, 5.5V, 25°C, 100kHz, 1.0Vp-p, RISET 1.8k, CH-1 clamp input, CH-2 CH-3 bias input, FCDATA 227, unless otherwise noted.
Rating Parameter Symbol Cutoff frequency Half mode cutoff frequency ratio attenuation Filter bypass mode passband Rhalf1 Rhalf2 FCDATA FCDATA FCDATA FCDATA Half mode, FCDATA Half mode, FCDATA 4fc, attenuation from 100kHz 1.0Vp-p, Gain Condition 4.98 29.70 74.25 4.05 5.66 33.75 40.60 6.34 37.80 Unit Test level
SEIKO CORPORATION
SM5309B
Analog output characteristics
5.0V, 5.5V, 25°C, 100kHz, 1.0Vp-p, RISET 1.8k, CH-1 clamp input, CH-2 CH-3 bias input, FCDATA 227, unless otherwise noted. Internal mode settings shown table "Mode Condition Settings".
Rating Parameter Filter mode output gain Filter bypass mode output gain Filter bypass mode gain error Channel channel gain error Maximum output voltage Output distortion Symbol dAVBP dAVCH Vout THDB THDC Channel channel crosstalk input input crosstalk Drive load resistance response time XTLK1 XTLK2 Mode: 1.0% Mode: 100kHz, 1.4Vp-p Mode: 100kHz, 1.4Vp-p 1.0Vp-p input, 1MHz, between channels 1.0Vp-p input, 1MHz, between INnA INnB load Response time from output when changing settings using I2C-BUS Gain error between filter mode bypass mode Condition Vp-p load Unit Test level
Reference voltage characteristics
5.0V, 5.5V, 25°C, unless otherwise noted.
Rating Parameter Symbol REF1 REF2 Condition output voltage 3.35 2.45 Unit Test level
Test level
definition "Test Level" shown electrical characteristic table follows. 100% products tested 25°C. Guaranteed result design characteristics evaluation.
SEIKO CORPORATION
SM5309B Mode Condition Settings
Table Mode settings
Input type Mode setting CH-1 Direct Clamp CH-2 Bias Bias Clamp Bias Half Clamp Bias Clamp Standard Filter Half Bypass Bypass CH-3 Bias Standard Filter mode Filter/Bypass mode
Evaluation Circuit Diagram
IN1A
10µF IN2A
10µF
0.1µF
100µF 0.1µF
100µF
IN1A IN1B
REF1 REF2 OUT1 OUT2 OUT3 100µF
100µF
IN3A
ISET
OUT1
IN1B
IN2A IN2B
100µF
OUT2
IN2B
IN3A IN3B MUXSEL
OUT3
IN3B
Controller 1.8k 100pF
SEIKO CORPORATION
SM5309B
FUNCTIONAL DESCRIPTION
I2C-BUS Control
SM5309B uses interface following functions. Cutoff frequency Input multiplexer selection mode switching (1/2 cutoff frequency switching) Filter mode/filter bypass mode switching Input type switching (sync-tip clamp, bias, direct) Power-down function
transfer rate I2C-BUS corresponds fast-mode 400kbit/s). Note that SM5309B does support read function write only). Basic cycle
Start condition
Stop condition
I2C-BUS start/stop condition basic access cycle comprises following elements. Start condition byte: Slave address byte: Subaddress byte: Control data Stop condition
input data does match slave address subaddress incorrect, corresponding (acknowledge) output LOW. However, output after byte irrespective byte data. Also note that does support subaddress auto-increment function, hence each subaddress access requires basic cycle steps
Start
byte:Slave address
byte:Subaddress
byte:Control data
Stop
SEIKO CORPORATION
SM5309B byte: slave address three slave addresses. Note that must (Write)". input circuit placed analog supply (VCC, GND) area.
byte: slave address Open
byte: subaddress byte sets subaddress, selecting three registers.
byte: subaddress Register name FCSET CONDITION1 CONDITION2
byte: control data byte control data sets register flags corresponding subaddress selected byte. flags assigned shown following table.
byte: control data Register name FCSET CONDITION1 CONDITION2 HALF BYPASS
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SM5309B Flag settings Cutoff frequency Register name: FCSET Flag names: FCM, [6:0] FCSET register setting sets cutoff frequency using tuning adjustment functions, thus total steps possible.
Flag name FCDATA FCSET 40.10 40.35 40.60 22.46 22.60 22.74 7.40 7.70 7.99 Cutoff frequency [MHz] 4.05 4.22 4.38
Default
Input type switching (sync-tip clamp, bias, direct) Register name: CONDITION1 Flag names: [5:4], [3:2], [1:0] These flags input type CH-1, CH-2, CH-3 three types: sync-tip clamp input, bias input, direct input.
Channel CH-1 CH-2 CH-3 Flag name Don't care Input type Default
Sync-tip clamp input Bias input Direct input*1
input coupling capacitor should connected when direct input selected.
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SM5309B Power-down mode select Register name: CONDITION2 Flag name: This flag selects standard/power-down analog block.
Flag name Mode Standard (normal operation) Power-down operation) Default
Input multiplexer selection Register name: CONDITION2 Flag name: This flag selects input three channels Note that this flag significant only when MUXSEL input LOW. "Input Multiplexer Switching (MUXSEL)".
Flag name INnA INnB Input selection*1 Default
mode switching (1/2 cutoff frequency switching) Register name: CONDITION2 Flag name: HALF This flag switches cutoff frequency CH-2 CH-3 divide value FCSET register into halves. Note that CH-1 cutoff frequency cannot switched 1/2. This mode suitable systems where sampling frequency varies requirements, such component signals.
Flag name mode HALF Standard mode (CH-1, CH-2, CH-3 cutoff frequency identical) Half mode (CH-2, CH-3 cutoff frequency that CH-1) Default
Filter bypass mode Register name: CONDITION2 Flag name: BYPASS This flag allows internal lowpass filter SM5309B bypassed. Even filter bypass mode, input type multiplexer function just filter mode. However, cutoff frequency mode settings have effect outputs.
Flag name Filter BYPASS Filter mode (signals pass through lowpass filter) Filter bypass mode (signals bypass lowpass filter) Default
SEIKO CORPORATION
SM5309B
Lowpass Filter
SM5309B built-in 5th-order lowpass filters with variable cutoff frequency. cutoff frequency range resistor (RISET) connected between ISET GND, cutoff frequency setting determined FCDATA data. cutoff frequency FCDATA values listed table shown graphically figure
Table Cutoff frequency FCDATA (RISET 1.8k)
FCDATA FCSET (hex) Cutoff freq. [MHz] 4.05 4.22 4.38 4.54 4.70 4.87 5.02 5.19 5.34 5.50 5.66 5.82 5.99 6.15 6.31 6.48 6.63 6.79 6.95 7.11 7.27 7.43 7.59 7.76 7.91 8.07 8.22 8.39 8.54 8.70 8.85 9.01 9.15 9.30 9.46 9.62 9.77 9.93 10.08 10.23 10.39 10.54 10.69 10.85 10.99 11.15 11.30 11.45 11.60 11.75 11.90 12.04 12.20 12.35 12.49 12.65 12.79 12.95 13.09 13.24 13.39 13.53 13.68 13.83 FCDATA FCSET (hex) Cutoff freq. [MHz] 13.95 14.09 14.24 14.39 14.53 14.67 14.82 14.97 15.11 15.25 15.39 15.54 15.68 15.83 15.97 16.11 16.25 16.39 16.54 16.68 16.82 16.96 17.11 17.26 17.39 17.54 17.67 17.81 17.95 18.09 18.23 18.37 18.51 18.65 18.78 18.92 19.06 19.19 19.33 19.48 19.61 19.74 19.88 20.02 20.15 20.30 20.43 20.57 20.71 20.83 20.97 21.10 21.24 21.38 21.52 21.65 21.78 21.91 22.06 22.19 22.33 22.46 22.60 22.74 FCDATA FCSET (hex) Cutoff freq. [MHz] 7.40 7.70 7.99 8.29 8.59 8.88 9.18 9.47 9.76 10.05 10.34 10.63 10.92 11.21 11.49 11.78 12.05 12.33 12.61 12.90 13.18 13.47 13.75 14.03 14.31 14.58 14.86 15.14 15.41 15.69 15.98 16.25 16.50 16.77 17.04 17.31 17.58 17.87 18.14 18.41 18.67 18.94 19.20 19.47 19.75 20.01 20.29 20.55 20.80 21.07 21.33 21.60 21.86 22.13 22.40 22.66 22.91 23.17 23.44 23.70 23.96 24.22 24.48 24.74 FCDATA FCSET (hex) Cutoff freq. [MHz] 24.93 25.19 25.45 25.72 25.96 26.24 26.48 26.74 27.01 27.26 27.51 27.76 28.02 28.26 28.53 28.78 29.02 29.26 29.54 29.78 30.02 30.28 30.52 30.78 31.03 31.28 31.53 31.77 32.03 32.28 32.53 32.78 33.02 33.27 33.50 33.75 34.01 34.25 34.49 34.73 34.98 35.23 35.47 35.72 35.96 36.20 36.45 36.70 36.94 37.19 37.42 37.66 37.91 38.16 38.41 38.66 38.88 39.12 39.36 39.60 39.86 40.10 40.35 40.60
SEIKO CORPORATION
SM5309B
[MHz] FCDATA
Figure Cutoff frequency FCDATA (RISET 1.8k)
RISET
RISET controls internal current source, connection essential. recommended value (RISET) 1.8k. power-down mode filter bypass mode, current flows into RISET. Note. value other than 1.8k will change current consumption SM5309B. determination resistance value, caution should taken ensure power dissipation does exceed absolute maximum rating package.
Half Mode
half mode, CH-2 CH-3 cutoff frequency that CH-1 cutoff frequency setting. Half mode useful systems where sampling frequency varies luminance color difference signal (Cr, requirements component signals.
Group Delay Characteristics
group delay varies with cutoff frequency setting. Note also that half mode, group delay between CH-1 CH-2/CH-3 varies.
Filter Bypass Mode
filter bypass mode, internal lowpass filter SM5309B bypassed signal input output buffer stage directly. filter bypass mode, input type multiplexer function just filter mode. cutoff frequency setting mode setting have effect outputs. this mode, passband frequency 80MHz (typ), which support SXGA-class signals.
Input Multiplexer Switching (MUXSEL)
input multiplexer setting also using MUXSEL input. When using I2C-BUS, certain amount communication time required, setting made using MUXSEL input with arbitrary timing high-speed switching. input circuit MUXSEL placed analog supply (VCC, GND) area.
MUXSEL flag Multiplexer selection*1 INnA INnB INnB INnB
SEIKO CORPORATION
SM5309B
Power-ON Reset
When power applied, internal power-ON reset circuit operates initializing internal register flags their default settings. power-ON, supplies should applied simultaneously.
Reference Voltage (REF)
REFn pins internal reference voltage outputs. capacitor connected between ground recommended stability movement. REF1 REF2 independent reference voltage outputs, have correspondence with settings CH-1, CH-2, CH-3.
SEIKO CORPORATION
SM5309B
USAGE PRECAUTIONS
Slave Address Setting
When slave address used, pull-up VCC. When slave address used, input must left open circuit. this case, external resistor should connected shown figure reduce risk malfunction I2C-BUS interface large spikes other noise invaded from outside. recommended value 10k.
Direct Input Mode
direct input mode, signal connected input without input capacitor. However, input voltage range varies with situation, hence signal must appropriately biased situation. input voltage exceeds "Direct mode input voltage range" (see "Analog input characteristics"), take care harmonic distortion occur output signal. (For defending device breakdown occur, input bottom voltage voltage should within absolute maximum ratings.)
Video Signal
INnA INnB
Slave address
Figure Slave address setting
Figure Direct input mode
Power Supply Invest Timing
SM5309B uses 2-type power supply, analog (VCC) I2C-BUS (VDD). Therefore power supply pins should forced voltage same time power supply invested. case analog power supply I2C-BUS separately, composing system time-lag makes short time standard under need. voltage I2C-BUS interface power supply comes higher than analog power supply, necessary voltage I2C-BUS interface power supply make potential difference bellow 250mV compared with voltage analog one.
SEIKO CORPORATION
SM5309B
TYPICAL CHARACTERISTICS
5.0V, 5.5V, 25°C, 100kHz, 1.0Vp-p, RISET 1.8k, CH-1 clamp input, CH-2 CH-3 bias input, FCDATA 227, unless otherwise noted.
Gain Gain [dB] Phase Frequency [MHz] -180 -270 -360 -450 -540 -630 Phase [deg] Gain [dB] Group delay Frequency [MHz] Gain Group delay [ns] Group delay [ns] Group delay [ns]
Figure Gain Phase characteristics (filter bypass mode)
Figure Gain Group delay characteristics (filter bypass mode)
Gain [dB] Frequency [MHz] Phase Gain
Phase [deg] -180 -270 -360 -450 -540 -630 Gain [dB]
Gain Group delay Frequency [MHz]
Figure Gain Phase characteristics (standard mode, FCDATA
Figure Gain Group delay characteristics (standard mode, FCDATA
Gain [dB] Frequency [MHz] Phase Gain
Phase [deg] Gain [dB] -180 -270 -360 -450 -540 -630
Gain Group delay Frequency [MHz]
Figure Gain Phase characteristics (half mode, FCDATA
Figure Gain Group delay characteristics (half mode, FCDATA
SEIKO CORPORATION
SM5309B
Gain Gain [dB] Frequency [MHz] Phase
Phase [deg] -180 -270 -360 -450 -540 -630 Gain [dB]
Group delay Frequency [MHz] Gain
Group delay [ns] Group delay [ns]
Figure Gain Phase characteristics (standard mode, FCDATA 227)
Figure Gain Group delay characteristics (standard mode, FCDATA 227)
Gain Gain [dB] Frequency [MHz] Phase
Phase [deg] Gain [dB] -180 -270 -360 -450 -540 -630
Gain Frequency [MHz] Group delay
Figure Gain Phase characteristics (half mode, FCDATA 227)
Figure Gain Group delay characteristics (half mode, FCDATA 227)
SEIKO CORPORATION
SM5309B
Gain [dB] Frequency [MHz]
(Bypass mode)
Phase [deg] -180 -270 -360 -450 -540 -630 (Bypass mode)
Frequency [MHz]
Figure Gain FCDATA, mode
FCDATA mode standard half standard half
Figure Phase FCDATA, mode
FCDATA mode standard half standard half
Group delay [ns] Frequency [MHz] (Bypass mode)
Figure Group delay FCDATA, mode
FCDATA mode standard half standard half
SEIKO CORPORATION
SM5309B
ICC2*2 ICC1*1
ICC2*2 ICC1*1
[mA]
[mA]
ICC3*3
ICC3*3
4.75
5.25
[°C]
filter mode, FCDATA filter mode, FCDATA filter bypass mode
filter mode, FCDATA filter mode, FCDATA filter bypass mode
Figure ICC1,
0.45 0.35 ICC4 [mA] ICC4 [mA] 0.25 0.15 0.05 4.75 5.25 0.45 0.35 0.25 0.15 0.05
Figure ICC1,
[°C]
Figure ICC4
Gain [dB] -0.2 -0.4 -0.6 -0.8 4.75 5.25 Gain [dB] -0.1 -0.2 -0.3 -0.4 -0.5
Figure ICC4
[°C]
Figure Gain
Figure Gain
SEIKO CORPORATION
SM5309B
VOUT VOUT
Figure VOUT (filter mode, direct mode)
Figure VOUT (filter bypass mode, direct mode)
SEIKO CORPORATION
SM5309B
Please your attention following points time using products shown this document. products shown this document (hereinafter "Products") intended used apparatus that exerts harmful influence human lives defects, failure malfunction Products. Customers requested obtain prior written agreement such from SEIKO CORPORATION (hereinafter "NPC"). Customers shall solely responsible for, indemnify hold free harmless from, claims, damages, losses, expenses lawsuits, such without such agreement. reserves right change specifications Products order improve characteristic reliability thereof. makes claim warranty that contents described this document dose infringe intellectual property right other similar right owned third parties. Therefore, shall responsible such problems, even accordance with descriptions provided this document. descriptions including applications, circuits, parameters Products this document reference Products, shall guaranteed free from defect, inapplicability design mass-production products without further testing modification. Customers requested export re-export, directly indirectly, Products country entity compliance with violation national export administration laws, treaties, orders regulations. Customers requested appropriately take steps obtain required permissions approvals from appropriate government agencies.
SEIKO CORPORATION
15-6, Nihombashi-kabutocho, Chuo-ku, Tokyo 103-0026, Japan Telephone: +81-3-6667-6601 Facsimile: +81-3-6667-6611 http://www.npc.co.jp/ Email: sales@npc.co.jp
NC0609BE 2007.04
SEIKO CORPORATION
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