LVCMOS/LVTTL-to-Differential
3.3V, 2.5V LVPECL Translator
85320
DATASHEET
85320 REVISION B DECEMBER 19, 2014 1 ©2014 Integrated Device Technology, Inc.
GENERAL DESCRIPTION
The 85320I is a LVCMOS / LVTTL-to-Differential 3.3V, 2.5V LVPECL
translator. The 85320I has a single ended clock input. The single
ended clock input accepts LVCMOS or LVTTL input levels and
translates them to 3.3V or 2.5V LVPECL levels. The small outline
8-pin SOIC package makes this device ideal for applications where
space, high performance and low power are important.
FEATURES
One differential 2.5V/3.3V LVPECL output
LVCMOS/LVTTL CLK input
CLK accepts the following input levels: LVCMOS or LVTTL
Maximum output frequency: 267MHz
Part-to-part skew: 275ps (maximum)
Additive phase jitter, RMS: 0.05ps (typical)
3.3V operating supply voltage
(operating range 3.135V to 3.465V)
2.5V operating supply voltage
(operating range 2.375V to 2.625V)
-40°C to 85°C ambient operating temperature
Available in lead-free (RoHS 6) package
BLOCK DIAGRAM PIN ASSIGNMENT
85320I
8-Lead SOIC
3.90mm x 4.92mm x 1.37mm body package
M Package
Top View
nc
Q
nQ
nc
1
2
3
4
Q
nQ
CLK
VCC
CLK
nc
V
EE
8
7
6
5
LVCMOS/LVTTL-TO-DIFFERENTIAL
3.3V, 2.5V LVPECL TRANSLATOR
85320 DATA SHEET
2 REVISION B 12/19/14
TABLE 1. PIN DESCRIPTIONS
TABLE 2. PIN CHARACTERISTICS
Number Name Type Description
1, 4, 6 nc Unused No connect.
2,3 Q, nQ Output Differential output pair. LVPECL interface levels.
5V
EE
Power Negative supply pin.
7 CLK Input Pullup LVCMOS / LVTTL clock input.
8V
CC
Power Positive supply pin.
NOTE: Pullup refers to internal input resistors. See Table 2, Pin Characteristics, for typical values.
Symbol Parameter Test Conditions Minimum Typical Maximum Units
C
IN
Input Capacitance 4 pF
R
PULLUP
Input Pullup Resistor 51
kΩ
REVISION B 12/19/14
85320 DATA SHEET
3 LVCMOS/LVTTL-TO-DIFFERENTIAL
3.3V, 2.5V LVPECL TRANSLATOR
TABLE 3A. POWER SUPPLY DC CHARACTERISTICS, V
CC
= 3.3V±5% OR 2.5V±5%, TA = -40°C TO 85°C
TABLE 3B. LVCMOS / LVTTL DC CHARACTERISTICS, V
CC
= 3.3V±5%, TA = -40°C TO 85°C
Symbol Parameter Test Conditions Minimum Typical Maximum Units
V
CC
Positive Supply Voltage
3.135 3.3 3.465 V
2.375 2.5 2.625 V
I
EE
Power Supply Current 25 mA
Symbol Parameter Test Conditions Minimum Typical Maximum Units
V
IH
Input High Voltage CLK 2 V
CC
+ 0.3 V
V
IL
Input Low Voltage CLK -0.3 1.3 V
I
IH
Input High Current CLK V
CC
= V
IN
= 3.465V 5 µA
I
IL
Input Low Current CLK V
CC
= V
IN
= 3.465V -150 µA
TABLE 3D. LVPECL DC CHARACTERISTICS, V
CC
= 3.3V±5% OR 2.5V±5%, TA = -40°C TO 85°C
Symbol Parameter Test Conditions Minimum Typical Maximum Units
V
OH
Output High Voltage; NOTE 1 V
CC
- 1.4 V
CC
- 0.9 V
V
OL
Output Low Voltage; NOTE 1 V
CC
- 2.0 V
CC
- 1.7 V
V
SWING
Peak-to-Peak Output Voltage Swing 0.6 1.0 V
NOTE 1: Outputs terminated with 50Ω to V
CC
- 2V.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
CC
4.6V
Inputs, V
I
-0.5V to V
CC
+ 0.5V
Outputs, I
O
Continuous Current 50mA
Surge Current 100mA
Package Thermal Impedance, θ
JA
112.7°C/W (0 lfpm)
Storage Temperature, T
STG
-65°C to 150°C
NOTE: Stresses beyond those listed under Absolute
Maximum Ratings may cause permanent damage to the
device. These ratings are stress specifi cations only. Functional
operation of product at these conditions or any conditions beyond
those listed in the DC Characteristics or AC Characteristics is not
implied. Exposure to absolute maximum rating conditions for ex-
tended periods may affect product reliability.
Symbol Parameter Test Conditions Minimum Typical Maximum Units
V
IH
Input High Voltage CLK 1.6 V
CC
+ 0.3 V
V
IL
Input Low Voltage CLK -0.3 0.9 V
I
IH
Input High Current CLK V
CC
= V
IN
= 2.625V 5 µA
I
IL
Input Low Current CLK V
CC
= V
IN
= 2.625V -150 µA
TABLE 3C. LVCMOS / LVTTL DC CHARACTERISTICS, V
CC
= 2.5V±5%, TA = -40°C TO 85°C

85320AMILF

Mfr. #:
Manufacturer:
IDT
Description:
Clock Buffer LVCMOS/LVTTL to Diff 2.5V/3.3V LVPECL
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet