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UPC1857ACT Datasheet(PDF) 11 Page - NEC

Part # UPC1857ACT
Description  SOUND CONTROL IC WITH SURROUND AND I2C BUS
PDF  44 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPC1857ACT Datasheet(HTML) 11 Page - NEC

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11
µµµµPC1857A
VCC
VCC
1/2VCC
19
VCC
3 k
5 k
5 k
5 k
+ 2.2 F
3 k
6 k
60 k
6 k
18
µ
Table 1-1. Pin Function List (5/7)
Pin Number
Pin Name
Equivalent Circuit
Description
17
VOL-C
VCC
VCC
50 k
17
+
3.3 F
µ
Pin for D/A converter capacitor for
volume control.
Pin voltage: approx. 6.0 V
18
OFL2
Pin that absorbs offset voltage of L
channel.
Pin voltage: approx. 6.0 V
19
OFL1
20
SCL
5 k
Ω
20
Serial clock line (I
2C bus clock Input)
pin.
Pin voltage: approx. 0.0 V
21
SDA
5 k
Ω
21
Serial data line (I
2C bus data I/O)
pin
Pin voltage: approx. 0.2 V
22
ADS
5 k
Ω
22
Slave address select pin.
Pin voltage: approx. 0.0 V
23
DGND
15
1
23
GND for I
2C bus signal.
Pin voltage: approx. 0.0 V
Remark Pin voltage is the reference value when VCC = 12 V.



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