- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄296796 > PCM9211PTR (TEXAS INSTRUMENTS INC) DATACOM, TOKEN RING TRANSCEIVER, PQFP48 PDF資料下載
參數(shù)資料
| 型號： | PCM9211PTR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 網(wǎng)絡(luò)接口 |
| 英文描述： | DATACOM, TOKEN RING TRANSCEIVER, PQFP48 |
| 封裝： | GREEN, PLASTIC, LQFP-48 |
| 文件頁數(shù)： | 42/121頁 |
| 文件大?。?/td> | 1219K |
| 代理商： | PCM9211PTR |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁當(dāng)前第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁
www.ti.com
SBAS495 – JUNE 2010
PLL Clock Source (Built-in PLL and VCO) Details
The PCM9211 an has on-chip PLL (including a voltage-controlled oscillator, or VCO) for recovering the clock
from the S/PDIF input signal.
The VCO-derived clock is identified as the PLL clock source.
When locked, the onboard PLL generates a system clock that synchronizes with the input biphase signal. When
unlocked, the PLL generates its own free-run clock (from the VCO).
The generated system clocks from the PLL can be set to fixed multiples of the input S/PDIF frequency. Register
30h/PSCK[2:0] can configure the output clock to 128fS, 256fS or 512fS.
The PCM9211 also has an automatic default output rate that is calculated based on the incoming S/PDIF
frequency. This calculation and rate are controlled by Register 30h/PSCKAUTO. In its default mode, the SCK
dividing ratio is configured according to these parameters:
512fS: 54 kHz and below.
256fS: 54 kHz to 108 kHz
128fS: 108 kHz and above (or unlocked)
PSCKAUTO takes priority over any settings in PSCK[2:0]. PSCK[2:0] only becomes relevant in the system when
the PSCKAUTO Register is set to '0'.
The PCM9211 can decode S/PDIF input signals between sampling frequencies of 7 kHz and 216 kHz for all
PSCK[2:0] settings. The relationship between the output clock (SCKO, BCKO, LRCKO) at the PLL source and
PSCK[2:0] selection is shown in Table 4.
Table 4. SCKO, BCKO and LRCKO Frequency Set by PSCK[2:0]
OUTPUT CLOCK AT PLL SOURCE
PSCK[2:0] SETTING
SCKO
BCKO
LRCKO
PSCK2
PSCK1
PSCK0
128fS
64fS
fS
0
256fS
64fS
fS
0
1
0
512fS
(1)
64fS
fS
1
0
(1)
512fS SCK is only supported at 108 kHz or lower sampling frequency of incoming biphase signal.
In PLL mode, the output clocks (SCKO, BCKO, LRCKO) are generated from the PLL source clock.
The relationship between the sampling frequencies (fS) of the input S/PDIF signal and the frequency of LRCKO,
BCKO, and SCKO are shown in Table 5.
Table 5. Output Clock Frequency at PLL Lock State
LRCK
BCK
SCK (Depends on PSCK[2:0] Setting)
fS
64fS
128fS
256fS
512fS
8 kHz
0.512 MHz
1.024MHz
2.048 MHz
4.096 MHz
11.025 kHz
0.7056 MHz
1.4112 MHz
2.8224 MHz
5.6448 MHz
12 kHz
0.768 MHz
1.536 MHz
3.072 MHz
6.144 MHz
16 kHz
1.024 MHz
2.048 MHz
4.096 MHz
8.192 MHz
22.05 kHz
1.4112 MHz
2.8224 MHz
5.6448 MHz
11.2896 MHz
24 kHz
1.536 MHz
3.072 MHz
6.144 MHz
12.288 MHz
32 kHz
2.048 MHz
4.096 MHz
8.192 MHz
16.384 MHz
44.1 kHz
2.8224 MHz
5.6448 MHz
11.2896 MHz
22.5792 MHz
48 kHz
3.072 MHz
6.144 MHz
12.288 MHz
24.576 MHz
64 kHz
4.096 MHz
8.192 MHz
16.384 MHz
32.768 MHz
88.2 kHz
5.6448 MHz
11.2896 MHz
22.5792 MHz
45.1584 MHz
96 kHz
6.144 MHz
12.288 MHz
24.576 MHz
49.152 MHz
128 kHz
8.192 MHz
16.384 MHz
32.768 MHz
N/A
176.4 kHz
11.2896 MHz
22.5792 MHz
45.1584 MHz
N/A
192 kHz
12.288 MHz
24.576 MHz
49.152 MHz
N/A
Copyright 2010, Texas Instruments Incorporated
27
Product Folder Link(s): PCM9211
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCM9211PT | DATACOM, TOKEN RING TRANSCEIVER, PQFP48 |
| PCN11MF | STRIP TERMINAL BLOCK, 1 DECK |
| PCN12E-32S-2.54DSA | 32 CONTACT(S), FEMALE, STRAIGHT TWO PART EURO CONNECTOR, SOLDER, SOCKET |
| PCN12E-44S-2.54DSA | 44 CONTACT(S), FEMALE, STRAIGHT TWO PART EURO CONNECTOR, SOLDER, SOCKET |
| PCN12E-50S-2.54DSA | 50 CONTACT(S), FEMALE, STRAIGHT TWO PART EURO CONNECTOR, SOLDER, SOCKET |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCM-93 | 功能描述:電線鑒定 Pre-Printed WM Card, Vinyl Cloth, .22" W RoHS:否 制造商:TE Connectivity / Q-Cees 產(chǎn)品:Labels and Signs 類型: 材料:Vinyl 顏色:Blue 寬度:0.625 in 長度:1 in |
| PCM-9342 | 制造商:ADVANTECH 制造商全稱:Advantech Co., Ltd. 功能描述:X86 SoC 3.5" SBC with VGA, LCD, LAN, USB, SATA, CF, PC/104 |
| PCM-9342F-64A1E | 制造商:ADVANTECH 制造商全稱:Advantech Co., Ltd. 功能描述:X86 SoC 3.5" SBC with VGA, LCD, LAN, USB, SATA, CF, PC/104 |
| PCM-9342FZ2-64A1E | 制造商:ADVANTECH 制造商全稱:Advantech Co., Ltd. 功能描述:X86 SoC 3.5" SBC with VGA, LCD, LAN, USB, SATA, CF, PC/104 |
| PCM-9342L-64A1E | 制造商:ADVANTECH 制造商全稱:Advantech Co., Ltd. 功能描述:X86 SoC 3.5" SBC with VGA, LCD, LAN, USB, SATA, CF, PC/104 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。