SY87700ALHG TR Micrel Inc, SY87700ALHG TR Datasheet - Page 8
![3.3V 32Mbps-175Mbps CDR (I Temp, Green/32 Pin TQFP/T+R)](/photos/6/50/65003/576-32-epad-tqfp_sml.jpg)
SY87700ALHG TR
Manufacturer Part Number
SY87700ALHG TR
Description
3.3V 32Mbps-175Mbps CDR (I Temp, Green/32 Pin TQFP/T+R)
Manufacturer
Micrel Inc
Type
Clock and Data Recovery (CDR)r
Datasheet
1.SY87700ALHG.pdf
(16 pages)
Specifications of SY87700ALHG TR
Input
PECL, TTL
Output
PECL, TTL
Frequency - Max
1.25GHz
Voltage - Supply
3.15 V ~ 3.45 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
32-TQFP Exposed Pad, 32-eTQFP, 32-HTQFP, 32-VQFP
Frequency-max
1.25GHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
SY87700ALHGTR
SY87700ALHGTR
SY87700ALHGTR
Micrel, Inc.
.
Frequency Selection Table
Notes:
1. SY87700AL operates from 32MHz to 208MHz. For higher speed applications, the SY87701AL operates from 28MHz to 1300MHz.
2. X is a DON’T CARE.
Reference Frequency Selection
Loop Filter Components
Note:
1. Suggested values. Values may vary for different applications.
August 2009
FREQSEL1
0
1
1
1
1
0
0
R5 = 350Ω
C3 = 1.0µF (X7R Dielectric)
FREQSEL2
(1)
1
0
0
1
1
1
0
DIVSEL1
0
0
1
1
FREQSEL3
DIVSEL2
X
0
1
0
1
1
0
1
0
1
0
(2)
8
f
RCLK
R5 = 680Ω
C3 = 1.0µF (X7R Dielectric)
/f
10
16
20
8
REFCLK
f
VCO
12
16
24
—
—
hbwhelp@micrel.com
/f
6
8
RCLK
f
RCLK
Data Rates (Mbps)
125 to 208
or (408) 955-1690
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94 to 156
63 to 104
M9999-082009-D
47 to 78
32 to 52
SY87700AL