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參數(shù)資料
| 型號： | SC9257 |
| 廠商： | 杭州士景電子有限公司 |
| 英文描述： | PLL FOR DTS |
| 中文描述： | 為DTS鎖相環(huán) |
| 文件頁數(shù)： | 1/28頁 |
| 文件大?。?/td> | 1019K |
| 代理商： | SC9257 |
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Silan
Semiconductors
SC9257
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0 2001.10.18
1
PLL FOR DTS
DESCRIPTION
The SC9257 is phase-locked loop (PLL) LSIs for digital tuning
systems (DTS) with built in 2 modulus prescalers.
All functions ate controlled through 3 serial bus lines. These LSIs
are used to configure high-performance digital tuning system.
FEATURES
* Optimal for configuring digital tuning systems in high-fi tuners
and car stereos.
* built-in prescalers. Operate at input frequency ranging from
30~150 MHz during FM
IN
input (with 2 modulus prescaler) and
at 0.5~40MHz during AM
IN
input (with 2 modulus prescaler or
direct dividing).
* 16 bit programmable counter, dual parallel output phase
comparator, crystal oscillator and reference counter.
* 3.6MHz, 4.5MHz, 7.2MHz or 10.8MHz crystal oscillators can be
used.
* 15 possible reference frequencies. ( When using 4.5MHz crystal)
* Built-in 20 bit general-purpose counter for such uses as
measuring intermediate frequencies (IF
IN1
and IF
IN2
) and low-
frequency pilot signal cycles (SC
IN
).
* High-precision (
±
0.55~
±
7.15
μ
s) PLL phase error detection.
* Numerous general-purpose I/O pins for such uses as peripheral
circuit control.
SOP-20-300-1.27
DIP-20-300-2.54
* 4 N-channel open-drain output ports
(OFF withstanding voltage:12V) for such
uses as control signal output.
* Standby mode function (turns off FM, AM
and
IF
amps)
to
save
current
consumption.
* All functions controlled through 3 serial
bus lines.
* CMOS structure with operating power
supply range of VDD=5.0
±
0.5V.
PIN CONFIGURATION
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
18
17
XT
XT
PERIOD
CLOCK
DATA
OT-1
OT-2
OT-3
OT-4
DO2
DO1
I/O-7/SC
IN
I/O - 8/IF
IN1
GND
FM
IN
AM
IN
V
DD
S
20
19
I/O - 5/CLK
I/O-6
I/O - 9/IF
IN2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SC9270C | DTMF RECEIVER |
| SC9270D | DTMF RECEIVER |
| SC9302 | 1-MEMORY/2-MEMORY TONE/PULSE DIALER |
| SC9302A | 1-MEMORY/2-MEMORY TONE/PULSE DIALER |
| SC9302ALT | 1-MEMORY/2-MEMORY TONE/PULSE DIALER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC9260 | 制造商:SILAN 制造商全稱:Silan Microelectronics Joint-stock 功能描述:2CH ELECTRONIC VOLUME CONTROLLER CONTROLLED BY SERIAL INTERFACE WITH LOUDNESS CONTROL |
| SC9260S | 制造商:SILAN 制造商全稱:Silan Microelectronics Joint-stock 功能描述:2CH ELECTRONIC VOLUME CONTROLLER CONTROLLED BY SERIAL INTERFACE WITH LOUDNESS CONTROL |
| SC9270C | 制造商:SILAN 制造商全稱:Silan Microelectronics Joint-stock 功能描述:DTMF RECEIVER |
| SC9270D | 制造商:SILAN 制造商全稱:Silan Microelectronics Joint-stock 功能描述:DTMF RECEIVER |
| SC-9280 | 制造商:ETC MOLEX-INACTIVE 功能描述:Cross Referenced to MOLEX - Part: MOL19164-0075 |
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