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SM6452AM

Description
Audio Variable Volume ICs
CategoryOther integrated circuit (IC)    Consumption circuit   
File Size80KB,16 Pages
ManufacturerNPC
Websitehttp://www.npc.co.jp/en/
Download Datasheet Parametric View All

SM6452AM Overview

Audio Variable Volume ICs

SM6452AM Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerNPC
package instruction,
Reach Compliance Codeunknow
SM6452AM/BM
NIPPON PRECISION CIRCUITS INC.
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 I
2
C
bus (SM6452BM). The SM6452AM/BM are available in 24-pin SSOP packages.
FEATURES
s
PINOUT
ina
AVDD1
VREF1
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
1
s
s
s
s
s
lim
P ackag e
24-pin SSOP
24-pin SSOP
s
s
6-channel input/output (positive-phase-sequence
output)
Attenuation function
• 6-channel independent control
• +16 to 0 to
79dB variable range
• 1.0 dB/step adjustment
• Mute function
Microcontroller interface
• 3-wire serial data interface (SM6452AM)
• I
2
C bus format 2-wire control (SM6452BM)
*1
• I
2
C address = 1000000
Low noise
0.002% THD + noise
10µVrms residual noise
0.5AV
DD
analog reference voltage source built-in
Power supply
• 7 to 13V analog supply
• 2.7 to 5.5V digital supply
Molybdenum-gate CMOS process
24-pin SSOP
SM6452AM
ORDERING INFORMATION
D e vice
SM6452BM
Top view
SM6452AM
SM6452BM
pre
*1.
I
2
C
bus is a registered trademark of Philips
Electronics N.V.
ry
Top view
24
AVDD2
VREF2
AOUT1
AOUT2
AOUT3
AOUT4
AOUT5
AOUT6
AVSS2
DVSS
MCK
S M 6 4 5 2 AM
AVSS1
MDT
RSTN
DVDD
12
13
MLEN
AVDD1
VREF1
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AVSS1
DVDD
SDA
RSTN
1
24
AVDD2
VREF2
AOUT1
AOUT2
AOUT3
AOUT4
AOUT5
AOUT6
AVSS2
DVSS
SCL
S M 6 4 5 2 BM
12
13
NC
NIPPON PRECISION CIRCUITS—1
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