TDA8594 Datasheet, PDF (22/48 Pages) NXP Semiconductors – I2C-bus controlled 4 X 50 W power amplifier

NXP Semiconductors
TDA8594
I²C-bus controlled 4 × 50 W power amplifier
Table 9.
Bit
D0
Instruction byte IB2 …continued
Description
fast mute all amplifier channels (mute delay 100 µs)
0 = no mute
1 = mute
Table 10.
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Instruction byte IB3
Description
don’t care
amplifier channel 1 and channel 3 gain select
0 = 26 dB
1 = 16 dB
amplifier channel 2 and channel 4 gain select
0 = 26 dB
1 = 16 dB
temperature pre-warning level
0 = warning level on 145 °C
1 = warning level on 122 °C
disable channel 3
0 = channel 3 enabled
1 = channel 3 disabled
disable channel 1
0 = channel 1 enabled
1 = channel 1 disabled
disable channel 4
0 = channel 4 enabled
1 = channel 4 disabled
disable channel 2
0 = channel 2 enabled
1 = channel 2 disabled
8.2 Data bytes
I²C-bus mode:
• If bit R/W = 1, the TDA8594 sends four data bytes to the microprocessor: DB1, DB2,
DB3, and DB4
• All bits except DB1[D7] and DB3[D7] are latched.
• All bits except DBx[D4] and DBx[D5] are reset after a read operation. Bit DBx[D2] is
set after a read operation; see Section 7.14
• For explanation of AC and DC load detection bits; see Section 7.15 and Section 7.16.
TDA8594_2
Product data sheet
Rev. 02 — 11 December 2007
© NXP B.V. 2007. All rights reserved.
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