CXA2027 データシートの表示（PDF） - Sony Semiconductor

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CXA2027

Analog signal processor IC

Sony Semiconductor 

CXA2027Q

Pin Symbol

No. (I/O)

Typical pin voltage

DC

AC

11 LD0 (I)

12 LD1 (I)

Lo:

13 LD2 (I) 0 to 0.8V

Hi:

3.5 to 5V

14 LD3 (I)

15 LD4 (I)

16 CLPC

Approx.

3.1V

Equivalent circuit

Description

VCCD VCCD

20k

11

129

1.5k

VCCA

VCCA

5-bit data input pin 1 for

pre-stage GCA gain

adjustment (LSB)

5-bit data input pin 2 for

pre-stage GCA gain

adjustment

5-bit data input pin 3 for

pre-stage GCA gain

adjustment

5-bit data input pin 4 for

pre-stage GCA gain

adjustment

5-bit data input pin 5 for

pre-stage GCA gain

adjustment (MSB)

16

129

1.5k

6.7µ

Additional capacitance pin

for line clamp.

Add 0.47µF between this

pin and GND.

17 VRB (O) 2.0V

18 VRT (O) 4.0V

19 GND 0V

VCCA

17

VCCA

6k

2.0V

3k

2k

100µ

VCCA VCCA

Output pin for AD converter

reference voltage VRB

100µ 100µ

1k

75µ

VCCA

18

VCCA VCCA

187.5

2k

750

Output pin for AD converter

reference voltage VRT

4k

100µ

–4–

GND pin

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