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Part Name
Description
SY87701L View Datasheet(PDF) - Micrel
Part Name
Description
Manufacturer
SY87701L
3.3V 32-1250Mbps AnyRate® CLOCK AND DATA RECOVERY
Micrel
SY87701L Datasheet PDF : 14 Pages
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Micrel, Inc.
28-PIN APPLICATION EXAMPLE
SY87701L
123456
V
CC
(R17 - R22)
5k
Ω
x 6
R8
130
Ω
LED
D2
GND
Capacitor Pads
V
CC
(1206 format)
R1
R2
C1
RDIN
C2
R3
R4
See Table 1
GND
1 VCCA
2 LFIN
3
DIVSEL1
4 RDINP
5 RDINN
6 FREQSEL1
7 REFCLK
8
FREQSEL2
9 FREQSEL3
LOOP FILTER
NETWORK
REFCLK
(TTL)
NC
80
Ω
R5
C3
1.5
µ
F
10 N/C
11
PLLSP
12
PLLSN
13
GND
14 GND
GND
XTAL
Oscillator
14
1
0.1
µ
F
C13
8
7
V
CC
120
Ω
R21
VCC 28
CD 27
DIVSEL2
26
RDOUTP 25
RDOUTN 24
VCCO 23
RCLKP
22
RCLKN 21
VCCO 20
TCLKP 19
TCLKN
18
CLKSEL 17
PLLRP 16
PLLRN 15
Ferrite Bead
BLM21A102
V
CC
Stand Off
0.1
µ
F
FB1
22
µ
F
0.1
µ
F
22
µ
F
C9
C8
C7
C6
0.1
µ
F
0.1
µ
F
C14
C15
J1
V
CC
R7
Diode D1
1k
Ω
1N4148
0.1
µ
F
0.1
µ
F
C16
C17
0.1
µ
F
0.1
µ
F
C18
C19
R6
50
Ω
C4
1.0
µ
F
If V
CC
= +3.3V:
R9 through R14 = 220
Ω
V
CC
C5
Pin 1 (VCCA)
0.1
µ
F
C10
Pin 28 (VCC)
0.1
µ
F
C11
Pin 23 (VCCO)
0.1
µ
F
C12
Pin 20 (VCCO)
0.1
µ
F
For AC-Coupling Only
C1 = C2 = 0.1
µ
F
R1 = R2 = 680
Ω
R3 = R4 = 1k
Ω
For DC Mode Only
C1 = C2 = Shorted
R1 = R2 = 130
Ω
R3 = R4 = 82
Ω
Note:
1. C5 and C10-C12 are decoupling capacitors and should be kept as close
to the power pins as possible.
M9999-111506
hbwhelp@micrel.com or (408) 955-1690
10
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