XRT8020 Datasheet, PDF (4/12 Pages) Exar Corporation – 650 MHZ CLOCK & CRYSTAL MULTIPLIER WITH LVDS OUTPUTS

XRT8020
REV. 1.0.2
PIN DESCRIPTION
650 MHZ CLOCK & CRYSTAL MULTIPLIER WITH LVDS OUTPUTS
PIN
NAME
TYPE
DESCRIPTION
1
AVDD
3.3V ±10% Analog Supply for Crystal Oscillator
2
AGND
Analog Ground for Crystal Oscillator
3
XTAL1
I
Crystal pin 1 or external clock input
4
XTAL2
O
Crystal pin 2 (output drive for crystal)
5
AGND
Analog Ground
6
REXT
I
External Bias Resistor (10KΩ to ground)
7
OE
I
Output Enable, Active low (Internal 50KΩ pull-down to ground)
8
PD
I
Power Down, Active High (Internal 50KΩ pull-down to ground)
9
FS1
I
Frequency select "1" (Internal 50KΩ pull-down to ground)
10
FS0
I
Frequency select "0" (Internal 50KΩ pull-up to VDD)
11
AGND
Analog Ground
12
OGND
Output Ground for LVDS outputs
13
OUTN
O
LVDS negative output for 50Ω line
14
OUTP
O
LVDS positive output for 50Ω line
15
OVDD
3.3V ±10% Digital Supply for LVDS Output buffer
16
AVDD
3.3V ±10% Analog Supply
ABSOLUTE MAXIMUM RATINGS
Supply voltage
V_IN
Storage Temperature
Operating Temperature
ESD
REXT (±1%)
-0.5 to 6.0 V
-0.5 to 6.0 V
-65°C to + 150°C
-40°C to + 85°C
>2,000 volts
10kΩ
ELECTRICAL CHARACTERISTICS
PARAMETER
Supply Voltage
Supply current
Power Save Current
Input Digital High
Input Digital Low
Crystal Frequency
SYMBOL MIN
V_DD
3.0
I_DD
I_DD
V_INH
2.0
V_INL
15
TYP
MAX UNIT
3.3 3.6
V
CONDITIONS
25
30
mA VDD = 3.3V
6
mA VDD = 3.3V, PD = 1, OEB = 0
V Pins 7, 8, 9, 10
0.8
V Pins 7, 8, 9, 10
27 MHz See Section 2.0 for Crystal Selection
3