SY87700VHC Micrel Inc, SY87700VHC Datasheet - Page 11

• Manufacturer Part Number: SY87700VHC
• Description: IC CLOCK/DATA RECOVERY 32-TQFP
• Manufacturer: Micrel Inc
• Type: Clock and Data Recovery (CDR)r

Specifications of SY87700VHC

• Input: PECL, TTL
• Output: PECL, TTL
• Frequency - Max: 1.25GHz
• Voltage - Supply: 3.15 V ~ 3.45 V, 4.75 V ~ 5.25 V
• Operating Temperature: 0°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: Contains lead / RoHS non-compliant

Micrel, Inc.
Table 1.
M9999-073008
[e-mail] or [phone]
RDIN
28-PIN APPLICATION EXAMPLE
Capacitor Pads
when V
(1206 format)
C1 = C2 = 0.1 F
R1 = R2 = 1.2k
R3 = R4 = 3.4k
GND
See Table 1
CC
C1
C2
130
R8
= +5V
R1
R3
VCC
LOOP FILTER
For AC-Coupling Only
VCC
NETWORK
GND
LED
D2
REFCLK
(TTL)
R2
R4
120
NC
R21
0.1 F
1.5 F
80
when V
C3
C13
14
GND
8
C1 = C2 = 0.1 F
R1 = R2 = 680
R3 = R4 = 1k
R5
Oscillator
XTAL
CC
10
11
12
13
14
1
2
3
4
5
6
7
8
9
DIVSEL1
REFCLK
FREQSEL3
PLLSN
= +3.3V
LFIN
RDINP
RDINN
FREQSEL1
FREQSEL2
N/C
PLLSP
GND
GND
VCCA
1
1
7
2
3
4
RDOUTN
DIVSEL2
RDOUTP
CLKSEL
5
RCLKP
RCLKN
TCLKP
TCLKN
PLLRN
PLLRP
VCCO
VCCO
VCC
11
6
CD
Note 1.
25
24
23
22
18
17
16
27
26
20
19
15
28
21
when V
(R17 - R22)
R6
C1 = C2 = Shorted
R1 = R2 = 82
R3 = R4 = 130
5k x 6
C4
C5 and C10–C12 are decoupling capacitors and should be kept
as close to the power pins as possible.
50‰
1.0 F
CC
VCC
0.1 F
= +5V
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
C11
C12
C5
VCC
C7
when V
0.1 F
0.1 F
0.1 F
0.1 F
C14
C15
C16
C17
C18
C19
22 F
VCC
C1 = C2 = Shorted
R1 = R2 = 130
R3 = R4 = 82
Stand Off
Pin 1 (VCCA)
Pin 28 (VCC)
Pin 23 (VCCO)
Pin 20 (VCCO)
C6
CC
= +3.3V
R7
1k
J1
Diode D1
1N4148
SY87700V
VCC