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LMX2430, LMX2433, LMX2434
SNAS187D – FEBRUARY 2003 – REVISED JANUARY 2016
www.ti.com
Pin Functions (continued)
PIN
I/O
DESCRIPTION
NAME
ULGA
TSSOP
Programmable multiplexed output. Functions as a general-purpose CMOS tri-state
output, N and R divider output, RF/ IF PLL push-pull analog lock-detect output, RF/
Ftest/LD
9
10
O
IF PLL open-drain analog lock-detect output, or RF/ IF PLL digital filtered lock-detect
output.
1
2
Ground for the IF PLL analog and digital circuits, MICROWIRE, Ftest/LD and
GND
11
12
oscillator circuits.
13
14
MICROWIRE Latch Enable input. High-impedance CMOS input. When LE
LE
17
18
I
transitions HIGH, DATA stored in the shift register is loaded into one of 6 internal
control registers.
Oscillator output/ IF PLL fastlock output. The output configuration is dependent on
the state of the ENosc pin. When ENosc is set LOW, the pin functions as an IF
OSCout/
fastlock output, which connects a resistor in parallel to R2 of the external loop filter.
6
7
O
FLoutIF
This configuration also functions as a general-purpose CMOS tri-state output. When
ENosc is set HIGH, the pin functions as an oscillator output so that an external
crystal can be used.
Reference oscillator input. The input has an approximate Vcc/2 threshold and is
OSCin
7
8
I
driven by an external AC-coupled source.
16
17
Power supply bias for the RF PLL analog circuits. Vcc may range from 2.25 V to
Vcc
8
9
2.75 V. Bypass capacitors must be placed as close as possible to this pin and be
connected directly to the ground plane.
20
1
7 Specifications
7.1 Absolute Maximum Ratings
See
(1) (2) (3) (4)
MIN
MAX
UNIT
Power supply voltage
−0.3
3.25
V
VCC to GND
Voltage on any pin to GND
VI
−0.3
VCC + 0.3
V
VI must be < +3.25 V
TL
Lead temperature (solder 4 seconds)
260
°C
Tstg
Storage temperature
−65
150
°C
(1)
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2)
This device is a high-performance RF integrated circuit with an ESD rating < 2000 V and is ESD-sensitive. Handling and assembly of
this device must be done at ESD-protected work stations.
(3)
GND = 0 V.
(4)
If Military/Aerospace specified devices are required, contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
7.2 Recommended Operating Conditions
MIN
MAX
UNIT
Power supply voltage Vcc to GND
2.25
2.75
V
Operating temperature, TA
−40
85
°C
4
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Copyright © 2003–2016, Texas Instruments Incorporated
Product Folder Links: LMX2430 LMX2433 LMX2434


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