REVISION B 8/25/15
873991-147 DATA SHEET
4
LOW VOLTAGE, LVCMOS/LVPECL-TO LVPECL/ECL
CLOCK GENERATOR
TABLE 3B. FEEDBACK CONTROL FUNCTION TABLE
Inputs Outputs
FSEL_FB2 FSEL_FB1 FSEL_FB0 QFB
000÷2
001÷4
010÷6
011÷8
100÷8
1 0 1 ÷16
1 1 0 ÷24
1 1 1 ÷32
TABLE 3A. SELECT PIN FUNCTION T ABLE
TABLE 3C. INPUT CONTROL FUNCTION TABLE
Control Input Pin Logic 0 Logic 1
PLL_EN Enables PLL Bypasses PLL
VCO_SEL fVCO fVCO/2
REF_SEL Selects CLK/nCLK Selects REF_CLK
MR --- Resets outputs
SYNC_SEL Selects outputs Match QC Outputs
Symbol Parameter Test Conditions Minimum Typical Maximum Units
C
IN
Input Capacitance 4 pF
R
PULLDOWN
Input Pulldown Resistor 51 kΩ
R
PULLup
Input Pullup Resistor 51 kΩ
TABLE 2. PIN CHARACTERISTICS
Inputs Outputs
FSEL3 FSEL2 FSEL1 FSEL0 QAx QBx QCx
0 0 0 0 ÷ 2 ÷ 2 ÷ 2
0 0 0 1 ÷ 2 ÷ 2 ÷ 4
0 0 1 0 ÷ 2 ÷ 4 ÷ 4
0 0 1 1 ÷ 2 ÷ 2 ÷ 6
0 1 0 0 ÷ 2 ÷ 6 ÷ 6
0 1 0 1 ÷ 2 ÷ 4 ÷ 6
0 1 1 0 ÷ 2 ÷ 4 ÷ 8
0 1 1 1 ÷ 2 ÷ 6 ÷ 8
1 0 0 0 ÷ 2 ÷ 2 ÷ 8
1 0 0 1 ÷ 2 ÷ 8 ÷ 8
1 0 1 0 ÷ 4 ÷ 4 ÷ 6
1 0 1 1 ÷ 4 ÷ 6 ÷ 6
1 1 0 0 ÷ 4 ÷ 6 ÷ 8
1 1 0 1 ÷ 6 ÷ 6 ÷ 8
1 1 1 0 ÷ 6 ÷ 8 ÷ 8
1 1 1 1 ÷ 8 ÷ 8 ÷ 8
REVISION B 8/25/15
873991-147 DATA SHEET
5 LOW VOLTAGE, LVCMOS/LVPECL-TO LVPECL/ECL
CLOCK GENERATOR
FIGURE 1. TIMING DIAGRAMS
REVISION B 8/25/15
873991-147 DATA SHEET
6 LOW VOLTAGE, LVCMOS/LVPECL-TO LVPECL/ECL
CLOCK GENERATOR
TABLE 4A. POWER SUPPLY DC CHARACTERISTICS, V
CC
= V
CCO
= 3.3V ± 5%, V
EE
= 0V, TA = 0°C TO 50°C
Symbol Parameter Test Conditions Minimum Typical Maximum Units
V
CC
Core Supply Voltage 3.135 3.3 3.465 V
V
CCA
Analog Supply Voltage V
CC
- 0.15 3.3 V
CC
V
V
CCO
Output Supply Voltage 3.135 3.3 3.465 V
I
CC
Power Supply Current 150 mA
I
CCA
Analog Supply Current 15 mA
I
CCO
Output Supply Current 95 mA
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
CC
4.6V
Inputs, V
I
-0.5V to V
CC
+ 0.5 V
Outputs, I
O
Continuous Current 50mA
Surge Current 100mA
Package Thermal Impedance, θ
JA
55.5°C/W (0 mps)
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 maxi-mum rating conditions for extended periods may
affect product reliability.
TABLE 4B. LVCMOS/LVTTL DC CHARACTERISTICS, V
CC
= V
CCO
= 3.3V ± 5%, V
EE
= 0V, TA = 0°C TO 50°C
Symbol Parameter Test Conditions Minimum Typical Maximum Units
V
IH
Input High Voltage
PLL_EN, VCO_SEL,
REF_SEL, SYNC_SEL,
FSEL_FB0:FSEL_FB2,
FSEL0:FSEL3, MR
2V
CC
+ 0.3 V
REF_CLK 2 V
CC
+ 0.3 V
V
IL
Input Low Voltage
PLL_EN, VCO_SEL,
REF_SEL, SYNC_SEL,
FSEL_FB0:FSEL_FB2,
FSEL0:FSEL3, MR
-0.3 0.8 V
REF_CLK -0.3 1.3 V
I
IH
Input High Current V
CC
= V
IN
= 3.465V 150 µA
I
IL
Input Low Current V
IN
= 0V, V
CC
= 3.465V -5 µA

873991AY-147LFT

Mfr. #:
Manufacturer:
IDT
Description:
Clock Generators & Support Products 13 LVPECL OUT CLOCK GENERATOR
Lifecycle:
New from this manufacturer.
Delivery:
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