LMX25121065EVAL/NOPB National Semiconductor, LMX25121065EVAL/NOPB Datasheet - Page 8

• Manufacturer Part Number: LMX25121065EVAL/NOPB
• Description: EVALUATION BOARD FOR LMX25121065
• Manufacturer: National Semiconductor
• Series: PLLatinum™r

Specifications of LMX25121065EVAL/NOPB

• Main Purpose: Timing, Frequency Synthesizer
• Embedded: No
• Utilized Ic / Part: LMX2512
• Primary Attributes: Single Fractional-N and Integer-N PLL with VCO
• Secondary Attributes: 1.065GHz, CodeLoader Graphical User Interface
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *LMX25121065EVAL; *LMX25121065EVAL/NOPB; LMX25121065EVAL

4.2
Figure 4.2.1 IF loop filter parameters
5
The LMX2512 Evaluation Board typical performance criteria is shown below:
5.1
Table 5.1.1 Test Conditions
LMX2512LQ1065
330 pF
Kφ
Typical Performance Measurements
IF PLL Loop Filter Parameters
Evaluation Conditions
Operating Voltage
Reference Frequency
RF VCO Tuning Range
RF Comparison Frequency
IF VCO Tuning Range
IF Comparison Frequency
3300 pF
36 kΩ
0 Ω
LMX2512LQ1065 EVALUATION BOARD OPERATING INSTRUCTIONS
Open
0 Ω
February 19, 2003
Open
VCO
Settings For Operation
Charge Pump Gain
(Kφ)
Comparison
Frequency (F
Output Frequency
(F
VCO Supply
Other Information
VCO Used
VCO Gain
2.8 V from regulator output
19.68 MHz
(1052 – 1078) MHz
120 kHz
(435 – 465) MHz
19.68 MHz
out
)
comp
)
300 µA
120 kHz
(435 – 465) MHz
2.8 V
Varil
LVCO-4279U
20 MHz/V
6