UPC1857A View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPC1857A

SOUND CONTROL IC WITH SURROUND AND I2C BUS

NEC => Renesas Technology 

Pin Number

17

Pin Name

VOL-C

Table 1-1. Pin Function List (5/7)

Equivalent Circuit

VCC

VCC

+ 17

3.3 µF

50 k

µPC1857A

Description

Pin for D/A converter capacitor for

volume control.

Pin voltage: approx. 6.0 V

18

OFL2

VCC

18

1/2VCC

3k

3k

60 k

Pin that absorbs offset voltage of L

channel.

Pin voltage: approx. 6.0 V

VCC

5k

+ 2.2 µF VCC

19

OFL1

6k

6k

19

5k

5k

20

SCL

21

SDA

5 kΩ

20

5 kΩ

21

Serial clock line (I2C bus clock Input)

pin.

Pin voltage: approx. 0.0 V

Serial data line (I2C bus data I/O)

pin

Pin voltage: approx. 0.2 V

22

ADS

23

DGND

5 kΩ

22

15

1

Slave address select pin.

Pin voltage: approx. 0.0 V

GND for I2C bus signal.

Pin voltage: approx. 0.0 V

23

Remark Pin voltage is the reference value when VCC = 12 V.

11

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