TEA6420

4/7

SOFTWARE SPECIFICATION

1. Chip address

2. Data bytes

X = don’t care - MSB is transmitted first

Example : X1001100 connects output 3 with input 5 at a gain of 4dB

The following are selected after power-on reset : input 5 selected for all outputs ; gain = 0dB.

Address

HEX

ADDR

1001 1000

98

0

1001 1010

9A

1

Output select

X0

0

1

1

0

1

0

1

Output 1

Output 2

Output 3

Output 4

Input select

Q0

0

0

0

0

1

1

0

0

1

1

0

0

0

1

0

1

0

1

Input 1

Input 2

Input 3

Input 4

Input 5

Mute

Gain select

Q0

0

0

1

1

0

1

0

1

Gain = 6 dB

Gain = 4 dB

Gain = 2 dB

Gain = 0 dB

1