Texas Instruments High Performance Frequency Synthesizer System with Integrated VCO LMX25312570EVAL/NOPB LMX25312570EVAL/NOPB 데이터 시트
제품 코드
LMX25312570EVAL/NOPB
L M X 2 5 3 1 L Q 2 5 7 0 E E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S
General Description
The LMX2531LQ2570E Evaluation Board simplifies evaluation of the LMX2531LQ2570E PLL/VCO
synthesizer system. The board enables all performance measurements with no additional support
circuitry. The evaluation board consists of a LMX2531LQ2570E device, and a cable assembly.
The cable assembly is bundled with the evaluation board for connecting to a PC through the parallel
printer port. By means of MICROWIRE
synthesizer system. The board enables all performance measurements with no additional support
circuitry. The evaluation board consists of a LMX2531LQ2570E device, and a cable assembly.
The cable assembly is bundled with the evaluation board for connecting to a PC through the parallel
printer port. By means of MICROWIRE
TM
serial port emulation, the CodeLoader software included can
be run on a PC to facilitate the LMX2531LQ2570E internal register programming for the evaluation and
measurement. In addition to this cable assembly, there is a microwire buffer board that ensures that
the proper voltage levels are provided to the microwire inputs and also this reduces digital noise from
computers through the parallel port.
measurement. In addition to this cable assembly, there is a microwire buffer board that ensures that
the proper voltage levels are provided to the microwire inputs and also this reduces digital noise from
computers through the parallel port.
Loop Filter
Phase Margin
32.4 deg
K
φ
90 uA
Loop Bandwidth
7.4 kHz
Fcomp
2.5 MHz
Crystal Frequency
10 MHz
Output Frequency
2336 – 2790 MHz (DIV2=0)
1168 – 1395 MHz (DIV2=1)
Supply Voltage
3.0 Volts
VCO Gain
16.5 MHz/Volt
VCO
CPout
47
pF
2.7 n
F
47
K
Ω
100 pF
100 pF
40 KΩ
40 KΩ
Vtune
3