STV2246H STMicroelectronics, STV2246H Datasheet - Page 48

• Manufacturer Part Number: STV2246H
• Manufacturer: STMicroelectronics

Specifications of STV2246H

• Lead Free Status / Rohs Status: Compliant

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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