SY87700LHI Micrel Inc, SY87700LHI Datasheet - Page 10

• Manufacturer Part Number: SY87700LHI
• Description: IC CLOCK/DATA RECOVERY 32-TQFP
• Manufacturer: Micrel Inc
• Type: Clock and Data Recovery (CDR)r

Specifications of SY87700LHI

• 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: Contains lead / RoHS non-compliant

M9999-111406
[e-mail] or [phone]
Micrel, Inc.
RDIN
28-PIN APPLICATION EXAMPLE
For AC-Coupling Only
C1 = C2 = 0.1µF
R1 = R2 = 680Ω
R3 = R4 = 1kΩ
Capacitor Pads
(1206 format)
GND
See Table 1
C1
C2
130Ω
R8
R1
R3
V
LOOP FILTER
CC
V
NETWORK
GND
CC
LED
D2
REFCLK
(TTL)
R2
R4
120Ω
NC
R21
0.1µF
1.5µF
For DC Mode Only
C1 = C2 = Shorted
R1 = R2 = 130Ω
R3 = R4 = 82Ω
80Ω
C3
C13
14
GND
8
R5
Oscillator
XTAL
10
11
12
13
14
1
2
3
4
5
6
7
8
9
DIVSEL1
REFCLK
FREQSEL3
PLLSN
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
PLLRP
PLLRN
VCCO
VCCO
10
VCC
6
CD
24
23
22
18
16
27
26
25
20
19
17
15
28
21
(R17 - R22)
R6
5kΩ x 6
C4
50Ω
1.0µF
V
0.1µF
CC
C9
FB1
Ferrite Bead
BLM21A102
22µF
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
C8
If V
R9 through R14 = 220Ω
0.1µF
C10
C11
C12
CC
C5
V
CC
= +3.3V:
C7
0.1µF
0.1µF
0.1µF
0.1µF
C14
C15
C16
C17
C18
C19
22µF
V
Stand Off
CC
Pin 1 (VCCA)
Pin 28 (VCC)
Pin 23 (VCCO)
Pin 20 (VCCO)
C6
R7
1kΩ
J1
Diode D1
1N4148
SY87700L
V
CC