tda9870ah NXP Semiconductors, tda9870ah Datasheet - Page 29

• Manufacturer Part Number: tda9870ah
• Description: Digital Tv Sound Processor Dtvsp
• Manufacturer: NXP Semiconductors

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Table 6 Level setting FM at 0 dB (full-scale) = 1.4 V (RMS); note 1
Notes
1. Nominal level at digital crossbar is defined at 15 dB (full-scale). DAC gain setting 6 dB. Output buffer setting 0 dB. Nominal SCART output level
2. For stereo signals the output level is 6 dB lower. The level adjust has to be increased by 6 dB.
Table 7 Level setting SAT FM at 0 dB (full-scale) = 1.4 V (RMS)
M
B/G
D/K
SAT FM, stereo 50 kHz deviation
SAT FM, mono
2 CHANNEL
STANDARD
500 mV (RMS).
SOURCE
FM
15 kHz deviation
27 kHz deviation
27 kHz deviation
27 kHz deviation
27 kHz deviation
TRANSMITTER
MODULATION
85 kHz deviation
NOMINAL
DEPTH
TRANSMITTER
MODULATION
MAXIMUM
DEPTH
note 2
NOMINAL LEVEL AT
24 dB (full-scale);
19 dB (full-scale)
19 dB (full-scale)
19 dB (full-scale)
19 dB (full-scale)
DEMODULATOR
OUTPUT
NOMINAL LEVEL AT
13 dB (full-scale)
9 dB (full-scale)
DEMODULATOR
OUTPUT
FREQUENCY
4.5 MHz
5.5 MHz
6.5 MHz
6.5 MHz
6.5 MHz
CARRIER 1
+4 dB
0 dB
FM LEVEL
SETTING
ADJUST
FREQUENCY
4.724 MHz
5.742 MHz
6.742 MHz
6.25 MHz
5.742 MHz
9 dB (full-scale) +6 dB
CROSSBAR
CARRIER 2
MAXIMUM
LEVEL AT
on
on
on
on
on
IDENT
DAC GAIN
SETTING
75 s
50 s
50 s
50 s
50 s
DE-EMPHASIS OF
CARRIER 1 AND
CARRIER 2
0 dB
OUTPUT
BUFFER
1 V (RMS)
OUTPUT VOLTAGE
NOMINAL SCART
+9 dB
+4 dB
+4 dB
+4 dB
+4 dB
ADJUST SETTING
AND CARRIER 2
OF CARRIER 1
FM LEVEL