STV8206 STMicroelectronics, STV8206 Datasheet - Page 14

• Manufacturer Part Number: STV8206
• Description: IC TV AUDIO PROC/DEMOD 80-TQFP
• Manufacturer: STMicroelectronics
• Type: Audio Processorr

Specifications of STV8206

• Applications: Radio
• Mounting Type: Surface Mount
• Package / Case: 80-TQFP, 80-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Demodulator Block
2.1.3
14/97
(From Demodulator)
FM/AM
Sound Carrier Frequency Offset Recovery: Both Mono and Stereo IF Carrier frequencies can be
adjusted independently (registers
120 kHz for standard mono FM deviations) while the AUTOSTD system remains active. The
frequency offset estimation is written in registers
And Mono Right / Channel 2, respectively) and can be used to implement the Automatic Frequency
Control (AFC) via an external I²C control.
If required, the AUTOSTD system can be disabled (Manual mode) and the user can control all
registers including those only controlled by the AUTOSTD function when active. Manual mode is
selected in registers
Sound Preprocessing and Selection
The demodulated sound signal can be redirected to 4 different output audio channels:
Each output channel can independently select the demodulator source, analog SCART or I²S inputs
using register CH_SEL.
(From Demodulator)
1. Loudspeaker & Subwoofer,
2. Headphone,
3. SCART,
4. I²S Interface.
(From Input Analog Audio Matrix)
NICAM
AUDIO IN
I²S IN
FM_DCL(42h)
FM_DCR(43h)
Removal
DC
Figure 8: Sound Preprocessing and Selection Block Diagram
De-emphasis
De-emphasis
NICAM
RESET
FM
PRE_AUX(46h)
PRE_AUX(46h)
Prescaler
Prescaler
SCART
I²S
PRE_NICAM(45h)
PEAK_DET_CTRL(4Bh)
PEAK_DET_STATL(4Ch)
PEAK_DET_STATR(4Dh)
or AUTO_SCKM.
PRE_FM(44h)
Prescaler
Prescaler
NICAM
FM
CAROFFSET1
Dematrix
Dematrix
NICAM
FM
Detector
FM_DCL
Peak
and CAROFFSET2) within a large range (up to
CH_MX(48h)
CH_MX(48h)
CH_LANG(4Ah)
and
CH_SEL(49h)
FM_DCR
(Mono Left / Channel 1
HP IN
LS IN
AUDIO OUT
I²S OUT
(To Loudspeaker Processing)
(To Headphone Processing)
(To Output Analog Audio Matrix)
(To I²S Interface)
STV82x6