LMX2541SQE3030E/NOPB National Semiconductor, LMX2541SQE3030E/NOPB Datasheet - Page 4

• Manufacturer Part Number: LMX2541SQE3030E/NOPB
• Description: IC PLL FREQ SYNTH W/VCO 36LLP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: Clock/Frequency Synthesizer (RF)r

Specifications of LMX2541SQE3030E/NOPB

• Pll: Yes
• Input: Clock
• Output: Clock
• Number Of Circuits: 1
• Ratio - Input:output: 2:2
• Differential - Input:output: No/No
• Frequency - Max: 3.23GHz
• Divider/multiplier: Yes/No
• Voltage - Supply: 3.15 V ~ 3.45 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 36-LLP
• Frequency-max: 3.23GHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LMX2541SQE3030ETR

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Pin #
Pin Descriptions
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
0
1
2
3
4
5
6
7
8
9
VregRFout
VregFRAC
VccOSCin
VccRFout
ExtVCOin
VccFRAC
VregVCO
RFoutEN
VrefVCO
VccPLL1
VccPLL2
VccVCO
Ftest/LD
VccCP1
VccCP2
VccBias
OSCin*
Bypass
VccDig
VccDiv
OSCin
Name
CPout
RFout
Vtune
FLout
DATA
GND
GND
Lmid
GND
GND
CLK
NC
CE
LE
L1
L2
LDO Bypass
High-Z Input
High-Z Input
High-Z Input
High-Z Input
High-Z Input
High-Z Input
LDO Output
LDO Output
LDO Output
(LDO Input)
(LDO Input)
(LDO Input)
RF Output
RF Input
Bypass
Supply
Supply
CMOS
Supply
Supply
Output
Output
Supply
Supply
Output
Supply
Supply
Supply
Supply
Supply
Type
GND
GND
GND
Input
GND
NC
NC
NC
NC
The DAP pad must be grounded.
LDO Output for RF output buffer.
Supply for the RF output buffer.
Do not connect this pin.
Do not connect this pin.
Do not connect this pin.
Supply for the VCO.
LDO Output for VCO
LDO Bypass
Chip Enable.
The device needs to be programmed for this pin to properly power down the device.
Optional input for use with an external VCO.
This pin should be AC coupled if used or left open if not used.
Power supply for PLL.
Power supply for PLL charge pump.
Tuning voltage input to the VCO.
Charge pump output.
Fastlock output.
Power supply for PLL charge pump.
Power supply for PLL.
Software controllable multiplexed CMOS output.
Can be used to monitor PLL lock condition.
Oscillator input signal. If not being used with an external crystal, this input should be AC
coupled.
Complementary oscillator input signal. Can also be used with an external crystal. If not
being used with an external crystal, this input should be AC coupled.
Supply for the OSCin buffer.
Software programmable output enable pin.
Power Supply for the PLL fractional circuitry.
Regulated power supply used for the fractional delta-sigma circuitry.
Supply for digital circuitry, such the MICROWIRE.
Supply for Bias circuitry that is for the whole chip.
Put a cap to the VccBias pin.
Supply for the output divider
MICROWIRE serial data input. High impedance CMOS input.
MICROWIRE clock input. High impedance CMOS input.
This pin is used for the digital FSK modulation feature.
MICROWIRE Latch Enable input. High impedance CMOS input.
No connect.
RF output. Must be AC coupled if used.
4
Description