MAX3872ETJ+ Maxim Integrated Products, MAX3872ETJ+ Datasheet - Page 4

• Manufacturer Part Number: MAX3872ETJ+
• Description: IC DATA RECOVERY W/AMP 32-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Clock and Data Recovery (CDR)r

Specifications of MAX3872ETJ+

• Input: CML
• Output: CML
• Frequency - Max: 2.67GHz
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Frequency-max: 2.67GHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Multirate Clock and Data Recovery
with Limiting Amplifier
AC ELECTRICAL CHARACTERISTICS (continued)
(V
Note 5:
Note 6:
Note 7:
Note 8:
Note 9:
Note 10: Measured using a 0.82µF loop-filter capacitor initialized to +3.6V.
Note 11: Measured at OC-48 data rate under LOL condition with the CDR clock output set by the external reference clock.
Figure 1. Definition of Input Voltage Swing
4
CML OUTPUT SPECIFICATIONS (SDO±, SCLKO±)
Output Edge Speed
CML Output Differential Swing
Clock-to-Q Delay
PLL ACQUISITION/LOCK SPECIFICATIONS
Tolerated Consecutive Identical
Digits
Acquisition Time
LOL Assert Time
Low-Frequency Cutoff for
DC-Offset Cancellation
CLOCK HOLDOVER SPECIFICATIONS
Reference Clock Frequency
Maximum VCO Frequency Drift
CC
V
V
V
V
_______________________________________________________________________________________
CC
CC
CC
CC
= +3.0V to +3.6V, T
+ 0.4V
- 0.4V
- 0.4V
- 0.8V
V
V
CC
CC
AC characteristics are guaranteed by design and characterization.
Jitter tolerance is guaranteed (BER ≤ 10
connected to V
Measured at OC-48 data rate using a 100mV
order Bessel filter with f
Measured with 10mV
Relative to the falling edge of the SCLKO+ (Figure 3).
PARAMETER
(a) AC-COUPLED SINGLE-ENDED INPUT
(b) DC-COUPLED SINGLE-ENDED INPUT
A
CC
= -40°C to +85°C. Typical values are at V
.
P-P
800mV
800mV
3dB
differential input, 2
SYM B O L
= 1.8GHz).
t
CLK-Q
t
r
, t
f
20% to 80%
R
(Note 9)
BER ≤ 10
Figure 4 (Note 10)
Figure 4
CAZ = 0.1µF
(Note 11)
-10
C
) within this input voltage range. Input threshold adjust is disabled with VCTRL
= 100Ω differential
23
P-P
- 1 PRBS pattern at OC-48 with bandwidth from 12kHz to 20MHz.
5mV
5mV
-10
differential swing with a 20mVDC offset and an edge speed of 145ps (4th-
CONDITIONS
CC
Figure 2. Relationship Between Control Voltage and Threshold
Voltage
+188
+152
+170
-170
-152
-188
= +3.3V and T
V
TH
(mV)
0.3
A
= +25°C, unless otherwise noted.) (Note 5)
1.1
THRESHOLD-SETTING STABILITY
(OVERTEMPERATURE AND POWER SUPPLY)
MIN
600
-50
2.3
Timing Diagrams
1.3
Table 3
2000
TYP
800
5.5
4
100.0
MAX
1000
2.10
+50
110
400
THRESHOLD-
SETTING
ACCURACY
(PART-TO-PART
VARIATION OVER
PROCESS)
V
CTRL
UNITS
mV
ppm
kHz
bits
ms
ps
ps
µs
(V)
P-P