参数资料
型号: MK3771-17ATRLF
元件分类: 时钟产生/分配
英文描述: 108 MHz, OTHER CLOCK GENERATOR, PDSO28
封装: QSOP-28
文件页数: 1/4页
文件大小: 62K
代理商: MK3771-17ATRLF
The MK3771-17 is a low cost, low jitter, high
performance VCXO and clock synthesizer designed
for set-top boxes and HDTV receivers. The on-chip
Voltage Controlled Crystal Oscillator accepts a 0 to 3.3
V input voltage to cause the output clocks to vary by
±100 ppm (R verstion) or ±115 (A version). Using ICS’s
patented VCXO and analog Phase-Locked Loop (PLL)
techniques, the device uses an inexpensive
13.5 MHz crystal input to produce multiple output
clocks including selectable BCLK, a selectable audio
clock, two communications clocks, a 13.5 MHz clock,
and three 27 MHz clocks. All clocks are frequency
locked to the 27.00 MHz output (and to each other)
with zero ppm error, so any output can be used as the
VCXO output.
MK3771-17
VCXO and HDTV Set-Top Clock Source
MDS 3771-17 B
1
Revision 091701
Integrated Circuit Systems, Inc. 525 Race Street San Jose CA95126 408) 295-9800tel www.icst.com
Description
Features
MK3771-17A is a drop-in replacement for the earlier
MK3771-17R device
Packaged in 28 pin SSOP (QSOP)
HDTV frequencies of 74.25 and 74.175824 MHz
On-chip patented VCXO with pull range
of 200ppm (minimum)
VCXO tuning voltage of 0 to 3.3 V
Supports Ethernet with 20 and 25 MHz clocks
Modem clocks of 11.0592 and 24.576 MHz option
Audio clocks support 32 kHz, 44.1 kHz, 48 kHz
and 96 kHz sampling rates
Zero ppm synthesis error in all clocks (all exactly
track 27MHz VCXO)
Uses an inexpensive 13.5 MHz crystal
Full CMOS output swings with 12 mA output
drive capability at TTL levels
Advanced, low power, sub-micron CMOS process
3.3 V ±5% operating supply
108 MHz
or 27 MHz
Block Diagram
Voltage
Controlled
Crystal
Oscillator
PLL
Clock
Synthesis
Circuitry
Output
Buffers
CCLK1
13.5 MHz
pullable
crystal
X1
X2
VIN
54 MHz
or 27 MHz
CCLK2
x8
PLL
Audio Clock
BCLK
BS1, BS0
CS
AS2:0
3
2
Output
Buffer
Output
Buffer
Output
Buffer
13.5 MHz
or 27 MHz
27 MHz
Output
Buffer
Output
Buffer
Output
Buffer
Output
Buffer
VS
Divide
Logic
相关PDF资料
PDF描述
MK3771-17ALF 108 MHz, OTHER CLOCK GENERATOR, PDSO28
MK3771-17ALF 108 MHz, OTHER CLOCK GENERATOR, PDSO28
MK3771-17ATR 108 MHz, OTHER CLOCK GENERATOR, PDSO28
MK5811GLF 32 MHz, OTHER CLOCK GENERATOR, PDSO8
MK5811GLFTR 32 MHz, OTHER CLOCK GENERATOR, PDSO8
相关代理商/技术参数
参数描述
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