ELECTRICAL CHARACTERISTICS (continued)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

GENERAL

Supply Voltage

6

9

10.2

V

Supply Current

5

8

11

mA

PSRR

Power Supply Rejection Ratio

65

85

dB

Output Noise

20Hz - 20kHz ”A” - weighted

BW = 200Hz - 20kHz, flat

output muted

4

7.0

5.5

20

µV

µV

µV

S/N

Signal to Noise Ratio

103

dB

d

Distortion

0.04

0.15

%

Sc

Channel Separation

70

80

dB

Total Tracking Error

0

0

1

2

dB

dB

BUS INPUTS

Input Low Voltage

1V

Input High Voltage

3

V

Input Current

-5

+5

µA

Output Voltage

SDA Acknowledge

0.15

0.40

V

SOFTWARE SPECIFICATION

Interface Protocol

The interface protocol comprises:

– a start condition (S)

– a chip address byte (the LSB bit determines read / write transmission)

– a subaddress byte

– a sequence of data (N-bytes + acknowledge)

– a stop condition (P)

S

1

0

0

0

1

0

1

R/W ACK X

X

X

I

DATA

ACK P

ACK = Acknowledge

S = Start

P = Stop

MAX CLOCK SPEED 500kbits/s

Auto Increment

If bit I in the subaddress byte is set to ”1”, the autoincrement of the subaddress is enabled.

CHIP ADDRESS

MSB

LSB

SUBADDRESS

MSB

LSB

MSB

DATA 1...DATA n

LSB

TDA7434

5/10