UMA1021M/C2 Philips Semiconductors (Acquired by NXP), UMA1021M/C2 Datasheet - Page 48

• Manufacturer Part Number: UMA1021M/C2
• Description: UDA1380; Stereo Audio Coder-decoder For MD, CD And MP3
• Manufacturer: Philips Semiconductors (Acquired by NXP)

Philips Semiconductors
Table 63 AGC target level setting bits
11.15 Restore L3 default values (software reset)
Table 64 Register address 7FH
11.16 Headphone driver and interpolation filter (read-out)
Table 65 Register address 18H
Table 66 Description of register bits
2003 Apr 04
Default value
Default value
Symbol
Symbol
Stereo audio coder-decoder
for MD, CD and MP3
15 to 11
BIT
BIT
BIT
BIT
BIT
AGC_LEVEL1
10
9
8
7
6
5
0
0
1
1
HP_STCTV
HP_STCTL
HP_STCTR
SDETR2
SDETL2
15
15
7
7
SYMBOL
SDETR2
AGC_LEVEL0
14
14
6
6
0
1
0
1
not used
Headphone driver short-circuit detection. When this bit is logic 0:
headphone driver is not short-circuit protected. When this bit is logic 1:
headphone driver short-circuit protection is activated.
Left headphone driver short-circuit detection. When this bit is logic 0: left
channel headphone driver is not short-circuit protected. When this bit is
logic 1: left channel headphone driver short-circuit protection is activated.
Right headphone driver short-circuit detection. When this bit is logic 0:
right channel headphone driver not short-circuit protected. When this bit is
logic 1: right channel headphone driver short-circuit protection activated.
not used
Interpolator silence detect channel 2 right. When this bit is logic 0:
interpolator on channel 2 right input has detected no silence. When this bit is
logic 1: interpolator on channel 2 right input has detected silence.
Interpolator silence detect channel 2 left. When this bit is logic 0:
interpolator on channel 2 left input has detected no silence. When this bit is
logic 1: interpolator on channel 2 left input has detected silence.
SDETL2
13
13
5
5
SDETR1
12
12
4
4
48
SDETL1
AGC TARGET LEVEL VALUE (dBFS)
11
11
3
3
DESCRIPTION
HP_STCTV
STATE_M
MUTE_
5.5 (default)
10
10
2
2
11.5
14
8
STATE_CH2
HP_STCTL
MUTE_
9
1
9
1
Product specification
UDA1380
STATE_CH1
HP_STCTR
MUTE_
8
0
8
0