SM6452AM Просмотр технического описания (PDF) - Nippon Precision Circuits
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SM6452AM Datasheet PDF : 16 Pages
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NIPPON PRECISION CIRCUITS INC.
SM6452AM/BM
Audio Variable Volume ICs
OVERVIEW
The SM6452AM/BM are serial-control electronic variable volume ICs for audio applications. They provide
electronic volume control for 6 channels, with independent channel gain, attenuation and muting. They feature
enhanced digital zip noise suppression. The serial control options are 3-wire interface (SM6452AM) and I2C
bus (SM6452BM). The SM6452AM/BM are available in 24-pin SSOP packages.
FEATURES
s 6-channel input/output (positive-phase-sequence
output)
s Attenuation function
• 6-channel independent control
• +16 to 0 to −79dB variable range
• 1.0 dB/step adjustment
• Mute function
s Microcontroller interface
• 3-wire serial data interface (SM6452AM)
• I2C bus format 2-wire control (SM6452BM)*1
• I2C address = 1000000
s Low noise
• ≤ 0.002% THD + noise
• ≤ 10µVrms residual noise
s 0.5AVDD analog reference voltage source built-in
s Power supply
• 7 to 13V analog supply
• 2.7 to 5.5V digital supply
s Molybdenum-gate CMOS process
s 24-pin SSOP
ORDERING INFORMATION
Device
SM6452AM
SM6452BM
Package
24-pin SSOP
24-pin SSOP
*1. I2C bus is a registered trademark of Philips
Electronics N.V.
PINOUT
SM6452AM
Top view
AVDD1 1
VREF1
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AVSS1
DVDD
MDT
RSTN 12
24 AVDD2
VREF2
AOUT1
AOUT2
AOUT3
AOUT4
AOUT5
AOUT6
AVSS2
DVSS
MCK
13 MLEN
SM6452BM
Top view
AVDD1 1
VREF1
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AVSS1
DVDD
SDA
RSTN 12
24 AVDD2
VREF2
AOUT1
AOUT2
AOUT3
AOUT4
AOUT5
AOUT6
AVSS2
DVSS
SCL
13 NC
NIPPON PRECISION CIRCUITS—1
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