STV0056A Datasheet, PDF (11/26 Pages) STMicroelectronics – SATELLITE SOUND AND VIDEO PROCESSORS

STV0056A
DC AND AC ELECTRICAL CHARACTERISTICS (continued)
(V_CC = 12V, V_DD = 5V, T_amb = 25^oC unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
AUDIO OUTPUT (Pins VOL OUT R, VOL OUT L)
DCOL DC Output Level
4.8
V
AOLN Audio Output Level
with Reg 00 = 1A
FM input as for APA50
No de-emphasis, No pre-emphasis
No noise reduction
1.5 1.9 2.34 VPP
AOL50 Audio Output Level
with Reg 00 = 1A
FM input as for APA50
50µs de-emphasis, 27kΩ//2.7nF load
No pre-emphasis, No noise reduction
2.0 3.3 4.0 V_PP
AOL75 Audio Output Level
with Reg 00 = 1A
FM input as for APA50
75µs de-emphasis, 27kΩ//2.7nF load
No pre-emphasis, No noise reduction
2.0 3.3 4.0 V_PP
AOL17 Audio Output Level
with Reg 00 = 1A
FM input as for APA50
2.0 3.2 4.0 VPP
J17 de-emphasis, 36kΩ 4.7kΩ 8.2nF load
No pre-emphasis, No noise reduction
AMA1 Audio Output Attenuation
with Mute-on. Reg 00 = 00.
1V_PP - 1kHz from S2 RTN Pins
60 65
dB
MXAT Max Attenuation before Mute.
Reg 00 = 01.
1kHz, from S2 RTN Pins
32.75
dB
MXAG Audio Gain. Reg 00 = 1F.
1kHz, from S2 RTN Pins
5
6
7 dB
ASTP Attenuation of each of the 31
steps
1kHz
1.25
dB
THDA1 THD with Reg 00 = 1A
1VPP -1kHz from S2 RTN Pins
0.15
%
THDA2 THD with Reg 00 = 1A
2V_PP -1kHz from S2 RTN Pins
0.3 1 %
THDFM THD with Reg 00 = 1A
FM input as for APA50
75µs de-emphasis, ANRS ON
0.3 1 %
ACS Audio Channel Separation
1VPP -1kHz on S2 RTN Pins
60 74
dB
ACSFM
Audio Channel Separation at 1kHz
- 0.5 V_PP - 50kHz deviation FM input on
one channel
- 0.5V_PP no deviation FM input on the
other channel
- Reg 05 = 36_HEX
- 75µs de-emphasis, no ANRS
60
dB
SNFM Signal to Noise Ratio
FM input as for APA50,
75µs de-emphasis,
no ANRS, Unweighted
56
dB
SNFMNR Signal to Noise Ratio
FM input as for APA50
75µs de-emphasis,
ANRS ON, Unweighted
69
dB
ZOUT L Audio Output Impedance
ZOUT H
Low impedance mode
High impedance mode
18
Ω
30 44 55 kΩ
AUXILIARY AUDIO OUTPUT (Pins S2 OUT R, S2 OUT L, S3 OUT R, S3 OUT L)
DCOLAO DC output level
AOLNS Audio Output Level
on S2 and S3
AOL50S Audio Output Level
on S2 and S3
AOL75S Audio Output Level
on S2 and S3
AOL17S Audio Output Level
on S2 and S3
AGAO S2 to S3 Audio Gain
and S3 to S2 Audio Gain
THDA02 THD on S2, Input in S3
Aux. input pins open circuit
4.8
V
FM input as for APA50
No de-emphasis, No pre-emphasis
No noise reduction
1.55 2 2.42 V_PP
FM input as for APA50
50µs de-emphasis, 27kΩ//2.7nF load
No pre-emphasis, No noise reduction
2.0 3.4 4.0 VPP
FM input as for APA50
75µs de-emphasis, 27kΩ//2.7nF load
No pre-emphasis, No noise reduction
2.0 3.4 4.0 V_PP
FM input as for APA50
2.0 3.3 4.0 V_PP
J17 de-emphasis, 36kΩ 4.7kΩ 8.2nF load
No pre-emphasis, No noise reduction
1kHz
-1 0 +1 dB
2V_PP - 1kHz from Aux input pins
0.04 0.2 %
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