TDA7440D STMicroelectronics, TDA7440D Datasheet - Page 9

• Manufacturer Part Number: TDA7440D
• Description: IC PROCESSOR AUDIO DGTL 28-SOIC
• Manufacturer: STMicroelectronics
• Type: Audio Processorr

Specifications of TDA7440D

• Applications: Hi-Fi Systems
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

5.2 POWER ON RESET CONDITION
Table 6.
5.3 DATA BYTES
Address = 88 HEX (ADDR:OPEN).
Table 7. FUNCTION SELECTION: First byte (subaddress)
B = 1: INCREMENTAL BUS ACTIVE
B = 0: NO INCREMENTAL BUS
X = DON’T CARE
In Incremental Bus Mode, the "not used" function must be addressed in any case. For example to refresh
"Volume = 0dB" and Speaker_R = -40dB", the following bytes must be sent:
Table 8.
Table 9. INPUT SELECTION
INPUT SELECTION
INPUT GAIN
VOLUME
BASS
TREBLE
SPEAKER
MSB
MSB
D7
D7
X
X
X
X
X
X
X
X
X
X
X
X
D6
D6
X
X
X
X
X
X
X
X
X
X
X
X
SPEAKER_R DATA
NOT USED DATA
D5
D5
X
X
X
X
X
X
X
X
X
X
X
X
SUBADDRESS
VOLUME DATA
TREBLE DATA
BUS DATA
D4
D4
X
X
X
X
B
B
B
B
B
B
B
B
D3
D3
X
X
X
X
0
0
0
0
0
0
0
0
D2
D2
X
X
X
X
0
0
0
0
1
1
1
1
D1
D1
0
0
1
1
0
0
1
1
0
0
1
1
LSB
LSB
D0
D0
0
1
0
1
0
1
0
1
0
1
0
1
IN2
MUTE
0dB
2dB
MUTE
28dB
INPUT SELECT
INPUT GAIN
VOLUME
BASS
NOT USED
TREBLE
SPEAKER ATTENUATE "R"
SPEAKER ATTENUATE "L"
XXXX1111
XXXX1111
XXXX1111
XXX10010
X0000000
X0000010
INPUT MULTIPLEXER
SUBADDRESS
IN4
IN3
IN2
IN1
TDA7440
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