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STV8218のメーカーはSTMicroelectronicsです、この部品の機能は「Digital Audio Decoder/Processor」です。 |
部品番号 | STV8218 |
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部品説明 | Digital Audio Decoder/Processor | ||
メーカ | STMicroelectronics | ||
ロゴ | |||
このページの下部にプレビューとSTV8218ダウンロード(pdfファイル)リンクがあります。 Total 30 pages
STV82x8
Digital audio decoder/processor
for BTSC television/video recorders
Features
■ Fully automatic multi-standard demodulation
– M/N standards
– FM mono
– BTSC (US MTS) stereo and SAP standards
■ Multi-channel capability
– 3 x I²S digital inputs
– I²S SRC
– S/PDIF (pass thru/out)
– 5.1 analog outputs
– 1 x I²S digital output (shared with one I²S digital
input)
– 2 x I²S additional digital outputs (TQFP100 only)
– I²S digital loop for external delay (TQFP100
only)
■ Sound processing: Loudspeaker
– Dolby®‚ Pro Logic®‚
– Dolby®‚‚ Pro Logic II®‚
– ST royalty-free processing: ST WideSurroundTM,
ST OmniSurroundTM, (which is Virtual Dolby®‚
Surround and Virtual Dolby®‚ Digital compliant),
ST Dynamic BassTM
– SRS®‚ WOWTM, SRS® TruSurround XTTM,
(which is Virtual Dolby®‚ Surround and Virtual
Dolby®‚ Digital compliant)
– SVC (smart volume control), 5-band equalizer
and loudness
– Independent volume/balance
– Variable beep tone and 3 sampled tones
■ Sound processing: Headphone
– SVC (smart volume control), bass-treble,
loudness and SRS®‚ TruBassTM,
– Independent volume/balance
■ Analog audio matrix
– 4 stereo inputs or 5 stereo inputs (TQFP100
only)
– 3 stereo outputs
– THRU mode
– 2 VRMS capability
■ Audio delay for audio video synchronization
– Embedded stereo delay up to 117 ms for lip-
sync function
– Independent delay on headphone and
loudspeaker channels
– External additional audio delay support
(TQFP100 only)
STV82x8 ®
STV82x8®
TQFP80 Package
TQFP100 Package
Description
The STV82x8 family, based on 24-bit 48kHz audio
DSPs (digital signal processors), performs high quality
and advanced dedicated digital audio processing.The
STV82x8 devices provide all of the necessary
resources for automatic detection and demodulation of
analog audio transmissions for USA, Taiwanese, and
Brazilian terrestrial analog TV broadcasts.
Virtual or true multi-channel capabilities and easy
digital links make them ideal for digital audio low cost
consumer applications. Starting from enhanced stereo
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up to independent control of 5 loudspeakers and a
subwoofer (5.1 channels), the STV82x8 family offers
standard and advanced features plus sound
enhancements, spatial and virtual effects to enhance
television viewer comfort and entertainment.
Table 1. Device summary
Order code
Packaging
STV82x8
Tray
March 2009
Rev 2
1/167
www.st.com
1
Datasheet pdf - http://www.DataSheet4U.net/
1 Page STV82x8
Contents
4 I²S interface (input/output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.1 I²S inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.1.1 I²S inputs in TQFP 80 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.1.2 I²S inputs in TQFP 100 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.2 I²S outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.2.1 I²S outputs in TQFP 80 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.2.2 I²S outputs in TQFP 100 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5 S/PDIF input/output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6 Power supply management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.1 Standby mode (loop-through mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.2 Power on reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7 Additional controls and flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7.1 Headphone detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7.2 IRQ generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7.3 I²C bus expander . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
8 STV82x8 reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
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9 I²C interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
9.1 I²C address and protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
9.2 Start-up and configuration change procedure . . . . . . . . . . . . . . . . . . . . . 35
9.3 Process flow during patch loading and DSP initialization . . . . . . . . . . . . . 38
9.4 Input configuration change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
10 Register list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
10.1 I²C register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
10.2 Software registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
10.3 STV82x8 general control registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
10.4 Clocking 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
10.5 Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
10.6 Demodulator channel 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
10.7 I2S and analog control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
3/167
Datasheet pdf - http://www.DataSheet4U.net/
3Pages Block diagrams
1 Block diagrams
Figure 1. STV82x8 block diagram (TQFP80)
Loudspeakers
Headphone/
Surround
SCART Outputs
STV82x8
Stereo
Audio
DAC
DATA_0
DATA_1
DATA_2
LR_CLK
S_CLK
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Audio Matrix
Back-end Processing and Pre-scaler
6/167
Sound IF
Mono
Input
SCART Inputs
Datasheet pdf - http://www.DataSheet4U.net/
6 Page | |||
ページ | 合計 : 30 ページ | ||
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PDF ダウンロード | [ STV8218 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
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STV8218 | Digital Audio Decoder/Processor | STMicroelectronics |