Monolithic Linear LA7473V Video Camera Stereo Microphon

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Monolithic Linear LA7473V Video Camera Stereo Microphon

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Ordering number EN5333A
Monolithic Linear
LA7473V
Video Camera
Stereo Microphone Amplifier
LA7473V microphone amplifier video cameras that supports stereo audio recording features power ability operate from supply voltage. achieves high audio quality providing equalization circuits improve frequency characteristics microphone left/right mixing circuit improve spatial presence stereo image.
Features
power (For 3.3V supply voltage 18mW, 4.75V 28mW) Low-voltage operation (2.7V minimum) noise Achieves high audio quality Provides built-in equalization circuits improve frequency characteristics microphone Provides left/right mixing circuit improve spatial presence stereo image
Functions
microphone amplifier channels Selector switch internal external microphones High-pass filter (with bypass function) Built-in microphone power supply Ripple filter External/internal microphone discrimination output Mono/stereo discrimination output
SANYO Semiconductor Co.,Ltd. products described contained herein are, with regard "standard application", intended general electronics equipment (home appliances, equipment, communication device, office equipment, industrial equipment etc.). products mentioned herein shall intended "special application" (medical equipment whose purpose sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level reliability directly threaten human lives case failure malfunction product cause harm human bodies, shall they grant guarantee thereof. should intend products applications outside standard applications customer considering such and/or outside scope intended standard applications, please consult with prior intended use. there consultation inquiry before intended use, customer shall solely responsible use. Specifications SANYO Semiconductor Co.,Ltd. products described contained herein stipulate performance, characteristics, functions described products independent state, guarantees performance, characteristics, functions described products mounted customer' products equipment. verify symptoms states that cannot evaluated independent device, customer should always evaluate test devices mounted customer' products equipment.
60408 PC/N1506 B8-2443 No.5333-1/11
LA7473V
Specifications
Maximum Ratings 25°C
Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol Topr Tstg 65°C Conditions Ratings +150 Unit
Operating Conditions 25°C
Parameter Recommended supply voltage Recommended operating supply voltage range Symbol Conditions Ratings 4.75 3.6, Unit
Electrical Characteristics 25°C, 3.3V, 1kHz,
Parameter Current drain Symbol ICC1 ICC2 Voltage gain Total harmonic distortion Maximum output voltage Output noise voltage VNO1 VNO2 Input switching crosstalk Inter-channel crosstalk Internal microphone power supply output voltage Input switching control voltage CTLH CTLL MONO EXT/INT output level Input impedance ZIN1 ZIN2 ZIN3 Output impedance Ripple rejection ratio Inrush current Power supply mode switching voltage VCCLH High level, 1/pin voltage level, 1/pin voltage High level, 15/pin level, 15/pin L/Rch L/Rch 1/pin 13/pin Output level 100Hz -20dBs 1/pin with applied voltage 3.3V (pin switching voltages: Mode (3.3V typical)/mode (4.75V typical) 3.65 47.5 4.45 -0.3 +0.7 SWCR CHCR VINM L/Rch L/Rch L/Rch -10dBs L/Rch -10dBs -10dBs, L/Rch L/Rch L/Rch, JIS-A L/Rch, JIS-A 10kHz, L/Rch EXT/INT MIC, Rch, Lch, 10kHz level with load 2.25 2.55 Conditions 27.5 Ratings 21.5 0.05 28.5 Vrms Vrms Unit
No.5333-2/11
LA7473V
Electrical Characteristics 25°C, 4.75V, 1kHz,
Parameter Current drain* Symbol ICC1 ICC2 Voltage gain Total harmonic distortion Maximum output voltage Output noise voltage VNO1 VNO2 Input switching crosstalk Inter-channel crosstalk Internal microphone power supply output voltage* Input switching control voltage CTLH CTLL MONO EXT/INT output level* Input impedance ZIN1 ZIN2 ZIN3 Output impedance Ripple rejection ratio Inrush current* High level, 1/pin voltage level, 1/pin voltage High level, 15/pin level, 15/pin L/Rch L/Rch 1/pin 13/pin Output level 100Hz -20dBs 1/pin with applied voltage 4.75V 47.5 -0.3 +0.7 SWCR CHCR VINM L/Rch L/Rch L/Rch -10dBs L/Rch -10dBs -10dBs, L/Rch L/Rch L/Rch, JIS-A L/Rch, JIS-A 10kHz, L/Rch EXT/INT MIC, Rch, Lch, 10kHz level with load 2.15 2.45 Conditions 27.5 Ratings 21.5 0.05 28.5 Vrms Vrms Unit
Note Items which ratings differ 3.3V mode.
Package Dimensions
unit (typ) 3191B
9.75
0.65 (0.33) 0.22
0.15
SANYO SSOP30(275mil)
(1.3)
1.5max
No.5333-3/11
0.1F 0.033F
VIN4
4.7k
0.033F
1000pF
0.33F
0.47F
VIN3
0.1F
Block Diagram Test Circuit
470k
RIPPLE FILTER BIAS 4.7k
Turn 5.5V
LA7473V
470k
0.33F
0.1F
0.033F
0.33F
VIN1
0.1F
0.47F
VIN5
VIN2
No.5333-4/11
220k 0.01F 0.047F R-CH EXT/INT
0.01F
0.068F 0.01F 4.7k 3.9k 0.033F
L-CH
0.01F
0.033F
0.047F
1000pF
0.1F
0.47F
Sample Application Circuit
2.2k
RIPPLE FILTER BIAS 4.7k 0.068F 3.9k 0.047F
LA7473V
0.033F
0.047F
0.01F
0.01F
L-CH
1000pF
6.8k
R-CH INT/EXT MONO L-CH
0.033F L-CH
1000pF
6.8k
CONTROL 30PIN 1PIN
MONO EXT/INT (15PIN) (16PIN) MONO
2.2k
0.1F
0.47F
0.01F
MONO
No.5333-5/11
LA7473V
Functions
Name INPUT SELECT CTL-1 INPUT SELECT CTL-2 voltage Description Internal/external switching Stereo/mono discrimination control Equivalent circuit
100k
IN-L IN-R
1.45V (VCC 3.3V) 2.2V (VCC 4.75V)
External microphone input Input impedance
BIAS
NFB1-L NFB1-R 1.45V (VCC 3.3V) 2.2V (VCC 4.75V) External amplifier
100k
NFB2-L NFB2-R 0.1V (VCC 3.3V) 0.15V (VCC 4.75V) External amplifier output attenuation output
100k
4.3k
RIPPLE FILTER
2.4V (VCC 3.3V) 2.3V (VCC 4.75V)
Used exclude ripple from internal circuits. Ripple removed with filter consisting external capacitor resistor.
Continued next page.
No.5333-6/11
LA7473V
Continued from preceding page.
Name IN-L IN-R voltage 1.45V (VCC 3.3V) 2.2V (VCC 4.75V) Description Internal microphone input Input impedance Equivalent circuit
BIAS
Mode 3.3V typical (2.7V 3.6V) Mode 4.75V typical (4.5V 5.5V) This cannot used range 4.5V. NFB-L NFB-R 1.45V (VCC 3.3V) 2.2V (VCC 4.75V) Internal amplifier
100k
OUT-L OUT-R 1.45V (VCC 3.3V) 2.2V (VCC 4.75V) Internal amplifier output These low-impedance outputs.
505A
BUFF IN-R BUFF IN-L
1.45V (VCC 3.3V) 2.2V (VCC 4.75V)
Mixer buffer input These high-impedance inputs.
OUT-L OUT-R
1.45V (VCC 3.3V) 2.2V (VCC 4.75V)
Mixer amplifier output These low-impedance outputs.
Continued next page.
No.5333-7/11
LA7473V
Continued from preceding page.
Name IN-L IN-R voltage 1.45V (VCC 3.3V) 2.2V (VCC 4.75V) Description Amplifier input high-pass filter These high-impedance inputs. Equivalent circuit
500k
OUT-L OUT-R
1.45V (VCC 3.3V) 2.2V (VCC 4.75V)
External/internal mode 5.5dB amplifier outputs
210A
BIAS
BIAS 1.45V (VCC 3.3V) 2.2V (VCC 4.75V) Reference voltage
MONO
Goes only when external microphone monaural.
EXT/INT
This high external mode internal mode.
High level 4.75V
Continued next page.
No.5333-8/11
LA7473V
Continued from preceding page.
Name voltage Description High-pass filter on/off control Equivalent circuit
100k
2.4V (VCC 3.3V) 2.3V (VCC 4.75V)
Internal microphone power supply
Frequency Characteristics Mixer Mode (Characteristics measured application circuit shown figure)
Gain
-OFF
HPF2
Frequency,
No.5333-9/11
LA7473V
Parameter Measurement Switch Settings
Parameter Current drain Current drain Voltage gain Symbol ICC1 ICC2 VG1-1 VG1-2 Voltage gain VG2-1 VG2-2 Total harmonic distortion THD1 THD2 THD3 THD4 Maximum output voltage VOM1 VOM2 VOM3 VOM4 Output noise voltage VNO1-1 VNO1-2 Output noise voltage VNO2-1 VNO2-2 Input switching crosstalk SWCR1 SWCR2 CHCR1 CHCR2 CHCR3 CHCR4 Internal microphone power supply output voltage MONO EXT/INT output level VINM VCH1 VCL1 VCH2 VCL2 Ripple rejection ratio ICT1 ICT1 Test point
Inter-channel crosstalk
Inrush current
No.5333-10/11
LA7473V
SANYO Semiconductor Co.,Ltd. assumes responsibility equipment failures that result from using products values that exceed, even momentarily, rated values (such maximum ratings, operating condition ranges, other parameters) listed products specifications SANYO Semiconductor Co.,Ltd. products described contained herein. SANYO Semiconductor Co.,Ltd. strives supply high-quality high-reliability products, however, semiconductor products fail malfunction with some probability. possible that these probabilistic failures malfunction could give rise accidents events that could endanger human lives, trouble that could give rise smoke fire, accidents that could cause damage other property. When designing equipment, adopt safety measures that these kinds accidents events cannot occur. Such measures include limited protective circuits error prevention circuits safe design, redundant design, structural design. event that SANYO Semiconductor Co.,Ltd. products described contained herein controlled under applicable local export control laws regulations, such products require export license from authorities concerned accordance with above law. part this publication reproduced transmitted form means, electronic mechanical, including photocopying recording, information storage retrieval system, otherwise, without prior written consent SANYO Semiconductor Co.,Ltd. information described contained herein subject change without notice product/technology improvement, etc. When designing equipment, refer "Delivery Specification" SANYO Semiconductor Co.,Ltd. product that intend use. Information (including circuit diagrams circuit parameters) herein example only; guaranteed volume production. Upon using technical information products described herein, neither warranty license shall granted with regard intellectual property rights other rights SANYO Semiconductor Co.,Ltd. third party. SANYO Semiconductor Co.,Ltd. shall liable claim suits with regard third party's intellctual property rights which resulted from technical information products mentioned above.
This catalog provides information June, 2008. Specifications information herein subject change without notice. No.5333-11/11

Monolithic Linear LA7473V Video Camera Stereo Microphon

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