STV2246H STMicroelectronics, STV2246H Datasheet - Page 48
STV2246H
Manufacturer Part Number
STV2246H
Description
Manufacturer
STMicroelectronics
Datasheet
1.STV2246H.pdf
(86 pages)
Specifications of STV2246H
Lead Free Status / Rohs Status
Compliant
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6.3.4 Tuner Delay
6.3.5 SIF Features and Audio Switches
Addr.
(Hex)
(Hex)
Reg.
Addr
Reg.
03
04
05
Tuner AGC Starting
Point Adjustment
Tuner AGC Gain
Main Audio Output
FM De-emphasis
Switch and FM de-
viation range con-
trol
FM Demodulator
defeat
AM/FM output se-
lection
QSS and AM de-
modulator defeat
Intercarrier filter
ON/OFF
Volume Control
Attenuation,
Linear curve (dB)
Volume Control
Attenuation,
Non-linear curve
(d0 = 0, d7 = 1)
Description
Description
Bits
2
2
1
1
Bits
1
1
7
6
6
2
d7 d6 d5 d4 d3 d2 d1 d0
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0
0
1
1
d7 d6 d5 d4 d3 d2 d1 d0
X
X
X
0
0
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0
1
0
1
X
X
X
0
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0
1
0
1
X
X
X
X
0
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0
1
0
1
Data
STV224X, STV228X, STV223X - I²C BUS SELECTION
X
X
X
X
0
0
1
Data
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
0
1
0
1
X
X
X
X
0
0
1
X
X
X
0
1
0
1
X
X
X
X
X
X
X
X
0
1
0
1
X
X
X
X
0
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
0
1
0
1
X
X
X
X
0
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0
1
0
0
X
X
X
X
0
0
1
FM/AM audio selected.
External audio selected.
MUTE selected.
Automatic control, according to sound standard.
De-emphasis at 75 µs and FM deviation at ±25 kHz.
De-emphasis at 50 µs and FM deviation at ±50 kHz.
Audio FM Wide mode &50 µs De-emphasis (BGDKI).
To be used with 224xH version only in QSS architec-
ture.
0 = FM Demodulator active.
1 = FM Demodulator defeat, FM out muted.
0 = FM output selected.
1 = AM output selected and FM demod OFF.
0 = QSS and AM demod active,
1 = QSS and AM demod not active (OFF)
0 = Intercarrier filter ON
1 = Intercarrier filter OFF
Attenuation = 0 dB.
Attenuation = 78 dB.
7-bit resolution.
Attenuation = 0 dB.
Attenuation = 78 dB.
6-bit resolution.
Min. Start point 2 mV
Typ. Start point 12 mV
Max. Start point 80 mV
50 µA/dB.
95 µA/dB.
170 µA/dB.
270 µA/dB.
Comments
Comments
RMS
RMS
RMS
at PIF input.
at PIF input.
at PIF input
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