MAX3624A Datasheet, PDF (2/12 Pages) Maxim Integrated Products – Low-Jitter, Precision Clock Generator with Four Outputs

Low-Jitter, Precision Clock Generator
with Four Outputs
ABSOLUTE MAXIMUM RATINGS
Supply Voltage Range V_CC, V_CCA,
V_{DDO_A}, V_{CCO_A}, V_{CCO_B} ................................-0.3V to +4.0V
Voltage Range at REF_IN, IN_SEL,
FB_SEL[1:0], SELA[1:0], SELB[1:0],
QAC_OE, QA_OE, QB0_OE, QB1_OE,
MR, BYPASS ..........................................-0.3V to (V_CC + 0.3V)
Voltage Range at X_IN ..........................................-0.3V to +1.2V
Voltage Range at GNDO_A...................................-0.3V to +0.3V
Voltage Range at X_OUT ............................-0.3V to (V_CC - 0.6V)
Current into QA_C ...........................................................±50mA
Current into QA, QA, QB0, QB0, QB1, QB1 .....................-56mA
Continuous Power Dissipation (T_A = +70°C)
32-Pin TQFN (derate 34.5mW/°C above +70°C) .......2759mW
Operating Junction Temperature Range ...........-55°C to +150°C
Storage Temperature Range .............................-65°C to +160°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V_CC = +3.0V to +3.6V, T_A = -40°C to +85°C, unless otherwise noted. Typical values are at V_CC = +3.3V, T_A = +25°C, unless other-
wise noted.) (Notes 1, 2, and 3)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP
Power-Supply Current
I_CC
(Note 4)
82
CONTROL INPUT CHARACTERISTICS
(SELA[1:0], SELB[1:0], FB_SEL[1:0], IN_SEL, QAC_OE, QA_OE, QB1_OE, QB0_OE, MR, BYPASS Pins)
Input Capacitance
C_IN
2
Input Pulldown Resistor
R_PULLDOWN Pins MR, FB_SEL[1:0]
75
Input Logic Bias Resistor
R_BIAS Pins SELA[1:0], SELB[1:0], QB0_OE
50
Input Pullup Resistor
R_PULLUP
Pins QAC_OE, QA_OE, QB1_OE, IN_SEL,
BYPASS
75
LVPECL OUTPUT SPECIFICATIONS (QA, QA, QB0, QB0, QB1, QB1 Pins)
Output High Voltage
V_OH
V_CC -
1.18
V_CC -
0.98
Output Low Voltage
V_OL
V_CC -
1.90
V_CC -
1.7
Peak-to-Peak Output-Voltage
Swing (Single-Ended)
(Note 2)
0.6 0.72
Clock Output Rise/Fall Time
Output Duty-Cycle Distortion
20% to 80% (Note 2)
PLL enabled
PLL bypassed (Note 5)
200 350
48
50
45
50
LVCMOS/LVTTL INPUT SPECIFICATIONS
(SELA[1:0], SELB[1:0], FB_SEL[1:0], IN_SEL, QAC_OE, QA_OE, QB1_OE, QB0_OE, MR, BYPASS Pins)
Input-Voltage High
V_IH
2.0
Input-Voltage Low
V_IL
Input High Current
I_IH
V_IN = V_CC
Input Low Current
I_IL
V_IN = 0V
-80
MAX
100
V_CC -
0.83
V_CC -
1.55
0.9
600
52
55
0.8
80
UNITS
mA
pF
k

k

k

V
V
V_P-P
ps
%
V
V
μA
μA
2 _______________________________________________________________________________________