Pin Functions

No. 4929-6/11

LC75366, 75366M

Pin No.

Symbol

Function

Note

1

20

2

3

19

18

4

17

5

16

6

15

7

14

12

9

10

11

8

13

L10dBIN

R10dBIN

LCT1

LCT2

RCT1

RCT2

L10dBOUT

R10dBOUT

L2dBIN

R2dBIN

L2dBOUT

R2dBOUT

LVref

RVref

S

CL

DI

CE

Input pins for the 10 dB step attenuator. Must be driven from a low impedance.

Loudness connections. Connect a high band compensation capacitor between

CT1 and 10dBIN and connect a low band compensation capacitor between CT2

and Vref.

Output pins for the 10 dB step attenuator. These outputs must be received by a

load of about 1 M

Ω.

Input pins for the 2 dB step attenuator. Must be driven from a low impedance.

Output pins for the 2 dB step attenuator. These outputs must be received by a

load of about 1 M

Ω.

Volume circuit common pins. The impedance of the pattern connected to these

pins should be kept as low as possible.

components when the volume is cut, adequate care must be taken in

determining the value of these capacitors.

Pin that selects the address code in the data format. Data will be accepted for

Serial data and clock inputs for control

Chip enable. The internally latched data is written and the analog switches

operate when this pin goes from high to low. Data transfer is enabled when this

pin is at the high level.

These pins must be connected to the power supply.