sy89429a Micrel Semiconductor, sy89429a Datasheet

no-image

sy89429a

Manufacturer Part Number
sy89429a
Description
Sy89429a Programmable Frequency Synthesizer 25mhz To 400mhz
Manufacturer
Micrel Semiconductor
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
sy89429aJC
Manufacturer:
Micrel Inc
Quantity:
10 000
Part Number:
sy89429aJC TR
Manufacturer:
Micrel Inc
Quantity:
10 000
Part Number:
sy89429aJZ
Manufacturer:
Micrel
Quantity:
101
Part Number:
sy89429aJZ
Manufacturer:
Micrel Inc
Quantity:
10 000
Part Number:
sy89429aJZ
Manufacturer:
MICREL
Quantity:
20 000
Part Number:
sy89429aJZ TR
Manufacturer:
MICREL
Quantity:
2 435
Part Number:
sy89429aJZ TR
Manufacturer:
Micrel Inc
Quantity:
10 000
Part Number:
sy89429aZC
Manufacturer:
SILERGY/矽力杰
Quantity:
20 000
Part Number:
sy89429aZH
Manufacturer:
MICREL
Quantity:
233
Micrel, Inc.
 Improved jitter performance over SY89429
 25MHz to 400MHz differential PECL outputs
 ±25ps peak-to-peak output jitter
 Minimal frequency over-shoot
 Synthesized architecture
 Serial 3 wire interface
 Parallel interface for power-on
 Internal quartz reference oscillator driven by quartz
 PECL output can operate with either +3.3V or +5V
 External loop fi lter optimizes performance/cost
 Applications note (AN-06) for ease of design-ins
 Available in PLCC and SOIC 28-pin packages
 Workstations
 Advanced communications
 High end consumer
 High-performance computing
 RISC CPU clock
 Graphics pixel clock
 Test equipment
 Other high-performance processor-based
Precision Edge is a registered trademark of Micrel, Inc.
FEATURES
APPLICATIONS
crystal or PECL source
VCC_OUT power supply
PIN CONFIGURATION
applications
LOOP_FILTER
VCC_QUIET
LOOP_REF
S_CLOCK
S_LOAD
S_DATA
XTAL1
26
27
28
2
3
4
1
25 24 23 22 21 20 19
5
6
7
TOP VIEW
PLCC
8
9
10 11
18
17
16
15
14
13
12
N[1]
N[0]
M[8]
M[7]
M[6]
M[5]
M[4]
PROGRAMMABLE
FREQUENCY SYNTHESIZER
(25MHz to 400MHz)
1
source targeting applications that require both serial and
parallel interfaces. Its internal VCO will operate over a range
of frequencies from 400MHz to 800MHz. The differential PECL
output can be confi gured to be the VCO frequency divided by
2, 4, 8 or 16. With the output confi gured to divide the VCO
frequency by 2, and with a 16MHz external quartz crystal used
to provide the reference frequency, the output frequency can
be specifi ed in 1MHz steps.
DESCRIPTION
The SY89429A is a general purpose, synthesized clock
GND (TTL)
VCC (TTL)
TEST
M[0]
M[1]
M[2]
M[3]
M[4]
M[5]
M[6]
M[7]
M[8]
N[0]
N[1]
10
11
12
13
14
1
2
3
4
5
6
7
8
9
TOP VIEW
SOIC
Precision Edge
28 /P_LOAD
27
26
25
24
23
22
21
20
19
18
17
16
15
Rev.: J
Issue Date: April 2007
VCC1
XTAL2
XTAL1
LOOP_REF
LOOP_FILTER
VCC_QUIET
S_LOAD
S_DATA
S_CLOCK
VCC_OUT
FOUT
/FOUT
GND
Precision Edge
Precision Edge
SY89429A
Amendment: /0
SY89429A
®
®
®

Related parts for sy89429a

sy89429a Summary of contents

Page 1

... PROGRAMMABLE FREQUENCY SYNTHESIZER (25MHz to 400MHz) DESCRIPTION The SY89429A is a general purpose, synthesized clock source targeting applications that require both serial and parallel interfaces. Its internal VCO will operate over a range of frequencies from 400MHz to 800MHz. The differential PECL output can be confi gured to be the VCO frequency divided 16. With the output confi ...

Page 2

... C C_OUT T 110 ÷ N (2,4,8,16 OUT ÷ 4 — LAT ÷ M — C LOCK LAT CH LOW — OUT — ÷ M — — 1 HIG H — 19,22 17,18 2 N[1:0] Precision Edge ® SY89429A +5. OUT 23 F OUT ...

Page 3

... OTHER . LOAD LOOP_FILTER This is an analog I/O pin that provides the loop filter for the PLL. LOOP_REF This is an analog I/O pin that provides a reference voltage for the PLL Precision Edge ® SY89429A . VCC1 ...

Page 4

... LOW, on the LOW-to-HIGH LOAD , the parallel inputs are captured. The parallel LOAD must meet set-up and DATA held HIGH, the configuration latches LOAD input. See the programming section for more LOAD ® SY89429A • • • 1 ...

Page 5

... M register with the final eight bits of the data stream on the S_ the most significant bit is loaded first (T2, N1 and M8). When T[2:0] is set to 100 the SY89429A is placed in PLL bypass mode. In this mode the S_ into the M and N dividers. The N divider drives the FOUT differential pair and the M counter drives the TEST output pin ...

Page 6

... Precision Edge ® SY89429A –2V CC_OUT –2V CC_OUT Condition — — 2. 0. –12mA –2.0mA 8mA OUT — Condition Fundamental Cyrstal ...

Page 7

... Pb-Free bar-line indicator Industrial Pb-Free bar-line indicator Commercial Commercial Industrial Pb-Free bar-line indicator Industrial Pb-Free bar-line indicator 7 Precision Edge Package Marking SY89429A SY89429A SY89429A with SY89429A with SY89429A SY89429A SY89429A with SY89429A with ® SY89429A Lead Finish Sn-Pb Sn-Pb Pb-Free NiPdAu Pb-Free NiPdAu ...

Page 8

... Micrel, Inc. 28 LEAD SOIC .300" WIDE (Z28-1) 8 Precision Edge ® SY89429A ...

Page 9

... Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify + 1 (408) 944-0970 FAX WEB Micrel for any damages resulting from such use or sale. © 2003 Micrel, Incorporated. 9 Precision Edge http://www.micrel.com ® SY89429A ...

Related keywords