sy87701v Micrel Semiconductor, sy87701v Datasheet - Page 11

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sy87701v

Manufacturer Part Number
sy87701v
Description
Sy87701v 5v/3.3v 32-1250mbps Anyrate Clock And Data Recovery
Manufacturer
Micrel Semiconductor
Datasheet

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Micrel, Inc.
RDIN
Table 1.
M9999-073008
hbwhelp@micrel.com or (408) 955-1690
28-PIN APPLICATION EXAMPLE
Capacitor Pads
(1206 format)
when VCC = +5V
C1 = C2 = 0.1 F
R1 = R2 = 1.2k
R3 = R4 = 3.4k
GND
See Table 1
C1
C2
130
R8
R1
R3
VCC
LOOP FILTER
VCC
For AC-Coupling Only
NETWORK
GND
LED
D2
REFCLK
(TTL)
R2
R4
120
NC
R21
0.1 F
1.5 F
80
when VCC = +3.3V
C3
C13
GND
14
8
C1 = C2 = 0.1 F
R1 = R2 = 680
R3 = R4 = 1k
R5
Oscillator
XTAL
10
11
12
13
14
1
2
3
4
5
6
7
8
9
REFCLK
FREQSEL3
LFIN
DIVSEL1
RDINP
RDINN
FREQSEL1
FREQSEL2
PLLSP
PLLSN
GND
GND
VCCA
N/C
1
1
7
2
3
4
RDOUTN
DIVSEL2
RDOUTP
CLKSEL
5
RCLKP
RCLKN
TCLKP
TCLKN
PLLRN
VCCO
PLLRP
VCCO
VCC
11
6
CD
Note 1.
24
23
22
16
27
26
25
20
19
18
17
15
28
21
when VCC = +5V
(R17 - R22)
R6
5k x 6
C1 = C2 = Shorted
R1 = R2 = 82
R3 = R4 = 130
C4
C5 and C10–C12 are decoupling capacitors and should be kept
as close to the power pins as possible.
50‰
1.0 F
VCC
0.1 F
C9
Ferrite Bead
BLM21A102
FB1
For DC Mode Only
22 F
0.1 F
0.1 F
0.1 F
0.1 F
0.1 F
0.1 F
C8
If VCC = +3.3V:
R9 through R14 = 220
If VCC = +5V:
R9 through R14 = 33
0.1 F
C10
C12
C11
C5
VCC
C7
0.1 F
0.1 F
0.1 F
0.1 F
when VCC = +3.3V
C14
C15
C16
C17
C18
C19
22 F
VCC
Stand Off
C1 = C2 = Shorted
R1 = R2 = 130
R3 = R4 = 82
Pin 1 (VCCA)
Pin 28 (VCC)
Pin 23 (VCCO)
Pin 20 (VCCO)
C6
R7
1k
J1
Diode D1
1N4148
SY87701V
VCC

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