SY87721LHG Micrel Inc, SY87721LHG Datasheet - Page 8

• Manufacturer Part Number: SY87721LHG
• Description: IC CLOCK/DATA RECOVERY 64-TQFP
• Manufacturer: Micrel Inc
• Type: Clock and Data Recovery (CDR)r

Specifications of SY87721LHG

• Input: Differential
• Output: Differential
• Frequency - Max: 340MHz
• Voltage - Supply: 3.15 V ~ 3.45 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-TQFP Exposed Pad, 64-eTQFP, 64-HTQFP, 64-VQFP
• Frequency-max: 340MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Micrel, Inc.
M9999-012508
[e-mail] or [phone]
Table 4. Synthesizer and Clock Recovery Loop Filter Values
LOOP FILTER COMPONENTS
OC-48 JITTER TRANSFER AND TOLERANCE
PLL
PLLSN+, PLLSN–
PLLRN+, PLLRN–
PLLSW+, PLLSW–
PLLRW+, PLLRW–
Figure 1. Narrow Band and Wide Band
Figure 2. Narrow Band and Wide Band
-10
-20
PLLRW+
PLLRN+
10
0
PLLSW+
PLLSN+
or
or
1000
Synthesizer Loop Filter
Modulation Frequency (Hz)
CDR Loop Filter
OC-48 Jitter Transfer
R
10000
R
R
1.2k
390
845
455
100000
C
C
PLLRW–
PLLRN–
1.E+6
PLLSW–
PLLSN–
or
or
C
1 F
1 F
1 F
1 F
1.E+7
8
NOTE:
1. V
CML OUTPUT DIAGRAM
complement pin). As opposed to the single-ended swing, differential
swing, V
value.
OSW
100
10
.1
is defined as |V
1
OSW
SY87721L
1000
50
Figure 3. 50 Load CML Output
(true pin) + V
Modulation Frequency (Hz)
V
OC-48 Jitter Tolerance
10000
CC
16mA
OH
–V
50
OSW
OL
100000
| on any one pin (either the true or the
(complement pin) is double the V
(1)
1.E+6
1.E+7
100
SY87721L
OSW