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STA304AのメーカーはSTMicroelectronicsです、この部品の機能は「DIGITAL AUDIO PROCESSOR」です。 |
部品番号 | STA304A |
| |
部品説明 | DIGITAL AUDIO PROCESSOR | ||
メーカ | STMicroelectronics | ||
ロゴ | |||
このページの下部にプレビューとSTA304Aダウンロード(pdfファイル)リンクがあります。 Total 30 pages
STA304A
DIGITAL AUDIO PROCESSOR WITH MULTICHANNEL DDX™
STA304AEND TO END DIGITAL AUDIO
INTEGRATED SOLUTION
· DSP Functions:
- DIGITAL VOLUME CONTROL
- SOFT MUTE
- BASS and TREBLE
- PARAMETRIC EQ PER CHANNEL
- BASS MANAGEMENT FOR SUBWOOFER
- AUTO MUTE ON ZERO INPUT DETECTION
4+1 DIRECT DIGITAL AMPLIFICATION
(DDX™) OUTPUT CHANNELs
6 CHANNELs PROGRAMMABLE SERIAL
OUTPUT INTERFACE (by default I2S)
4 CHANNELs PROGRAMMABLE SERIAL
INPUT INTERFACE (by default I2S)
STEREO S/PDIF INPUT INTERFACE
Intel AC'97 LINK (rev. 2.1) INPUT INTERFACE
FOR AUDIO AND CONTROL
ON CHIP AUTOMATIC INPUT SAMPLING
FREQUENCY DETECTION
100 dB SNR SAMPLE RATE CONVERTER
(1KHz SINUSOIDAL INPUT)
I2C CONTROL BUS
- LOW POWER 3.3V CMOS TECHNOLOGY
)BLOCK DIAGRAM
t(sSA SCL SDA
11 10 9
ucLRCKI/ SYNC
dBICKI / BIT_CL
3
4
roSDI_1 / SDATA_OUT 1
SDI_2 / SDATA_IN 2
PRXP 18
bsolete RXN 19
I2S
S/PDIF
I2C
SRC
AC`97
TQFP44
ORDERING NUMBER: STA304A
t(s) EMBEDDED PLL FOR INTERNAL CLOCK
cGENERATION (1024x48 kHz = 49.152 MHz)
u 6.144 MHz EXTERNAL INPUT CLOCK OR
dBUILT-IN INDUSTRY STANDARD XTAL
roOSCILLATOR
VARIABLE DIGITAL GAIN UP TO 24dB
P(0.75dB STEP)
te1.0 DESCRIPTION
leThe STA304A Digital Audio Processor is a single
ochip device implementing end to end digital solution
sfor audio application. In conjunction with STA500
bpower bridge it gives the full digital DSP-to-power
Ohigh quality chain with no need for audio Digital-to-
Analog converters between DSP and power stage.
ROM
DSP
RAM
DDX
I2S
29 LEFT_A
30 LEFT_B
27 RIGHT_A
28 RIGHT_B
33 SLEFT_A
34 SLEFT_B
23 SRIGHT_A
24 SRIGHT_B
21 LFE_A
22 LFE_B
43 LRCKO
43 BICKO
43 SDO_1
43 SDO_2
43 SDO_3
RESET 7
PLL
PowerDown
35 EAPD
April 2010
14 15
XTI XTO
43
CKOUT
44
PWDN
1/31
1 Page PIN CONNECTION (Top view)
STA304A
44 43 42 41 40 39 38 37 36 35 34
SDI_1/SDATA_OUT 1
33 SLEFT_B
SDI_2/SDATA_IN 2
32 VDD_4
LRCKI/SYNC 3
31 GND_4
BICKI/BIT_CLK 4
30 LEFT_A
VDD_1 5
29 LEFT_B
GND_1 6
28 RIGHT_A
RESET 7
27 RIGHT_B
AC97_MODE 8
26 VDD_3
SDA 9
25 GND_3
SCL
)SA
10 24
11 23
12 13 14 15 16 17 18 19 20 21 22
SRIGHT_A
SRIGHT_B
ct(sD00AU1160
duPIN FUNCTION
roPIN NAME
P1 SDI_1 / SDATA_OUT
te2 SDI_2 / SDATA_IN
le3 LRCKI / SYNC
bso4 BICKI / BIT_CLK
O5 VDD_1
-6 GND_1
t(s)7 RESET
c8 AC97_MODE
rodu9 SDA
P10 SCL
te11 SA
le12 TEST_MODE
o 13 VDD_2
bs 14 XTI
TYPE
DESCRIPTION
I Input I2S Serial Data 1 / AC97 Output Data
I/O Input I2S Serial Data 2 / AC97 Input Data
I/O Input I2S Left/Right Clock / AC97 Synch.
Clock
I/O Input I2S Serial Clock / AC97 Bit Clock
Digital Supply Voltage
Digital Ground
I Global Reset
(This pin is sensed only after 2 clock cycles)
I AC97 Enable / Disable (1=AC97; 0=I2S/
SPDIF)
I/O I2C Serial Data
I I2C Serial Clock
Select Address (I2C / AC97)
I Test Mode (Active High)
Digital Supply Voltage
I Crystal Input (Clock input)
PAD TYPE
CMOS Schmitt In
CMOS In / CMOS Out 2mA
CMOS In / CMOS Out 2mA
CMOS In / CMOS Out 4mA
CMOS Schmitt In Pull-Up
CMOS Schmitt In Pull-Down
CMOS In / CMOS Out 2mA
CMOS In
CMOS In
CMOS
Analog IN
15 XTO
O Crystal Output
CMOS Out Oscill. Pad
16 GND_2
Digital Ground
3/31
3Pages STA304A
DC ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit Note
Vil Low Level Input Voltage
0.2*VDD V
Vih High Level Input Voltage
0.8*VDD
V
Vol Low Level Output Voltage
Iol = X mA
0.4*VDD V
1,2
Voh High Level Output Voltage
0.85*VDD
V 1,2
Note 1: Takes into account 200mV voltage drop in both supply lines
Note 2: X is the source/sinc current under worst case conditions and is reflected in the name of the I/O cell according to the drive capability.
Ipu Pull-up current
Vi = 0V;
VDD = 3.3V
-25 -66 -125 µA
1
Rpu Equivalent Pull-up resistance
)TR Reset Active Time
ct(sTCK Master Clock Period
50
2·TCK
--------1---------
49.152
KΩ
ns
ns
duNote 1: Min condition: Vdd = 3.0V, 125°C Min process; Max. condition: Vdd = 3.6 V, -20°C max process.
roDIGITAL CHARACTERISTICS-SPDIF RECEIVER (RXP,RXN pins only, SPDIF - MODE = ANALOG)
PZIN Input Resistance
teVTH Dufferential Input Voltage
200
leVHY Input Hysteresis
50
kΩ
mV
mV
so2.0 AC’97 BANK REGISTER OVERVIEW
bThe AC `97 interface is compliant to ‘Audio Codec `97 – Revision 2.1’ specification, as far as the protocol used.
OAll the registers described in this specification, including Standard, Vendor Reserved and Extended Audio (AC
`97 2.0) registers, are available in this device, but just relevant registers which are described in paragraph 11
-(Register Summary) are implemented.
t(s)The ATE mode feature has been implemented for test purpose: for related details refer to the ‘Audio Codec `97
– Revision 2.1’ specification.
uc2.1 Reading AC `97 Registers
dSince the AC`97 register bank has been implemented as a contiguous RAM space (from a DSP point of view)
rothe content of the RAM itself will be returned as the result of a read operation. This should be followed as a
general rule of thumb but, where not possible, a different approach has been used. Hereby is a list of the reg-
Pisters, and bits, that do not follow this rule or that have a particular handling:
lete• CodecID_0, CodecID_1:
These two bit are respectively bits 14 and 15 of registers 28h (Extended Audio ID) and 3Ch (EWxtended
o Modem ID). When a read operation of these registers is performed the returned value is based on the status
bs of the SA pin: CodecID_0 report the status of SA pin, CodecID_1 always report 0. Other bits of these regis-
ters return the related RAM register contents. Also note that the status of the SA pin is not readable by the
DSP.
• PR4:
The bit 12 of register 26h (Powerdown, ctrl/start) is used to set the AC`97 BIT_CLK and SDATA_IN signal
to a low state. In response to a Warmers the status of this bit is set back to its default 0 value. In response
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6 Page | |||
ページ | 合計 : 30 ページ | ||
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PDF ダウンロード | [ STA304A データシート.PDF ] |
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部品番号 | 部品説明 | メーカ |
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