产品名称:铷模块
产品型号: PRS10
产品品牌: SRS
PRS10铷原子振荡器(铷钟)是美国 SRS 公司生产的高性能铷原子振荡器产品,具有低相噪、低漂移、稳定度高等特点。可广泛应用于电信、时统、雷达、计量标准等领域。
PRS10是一款超低相位噪声(-130dBc/Hz@10Hz)的10MHz铷原子振荡器。极低的月老化率(<5E-11),使其非常适合作为一款时基部件用于精密的频率测量。该振荡器有一个1pps输入端口可用于外部参考标准(如GPS)进行锁相并具有72小时Strautm 1 Level的保持能力。铷钟的使用寿命预期可达20年且该器件备有一个标准RS-232计算机接口。

具体的规格参数如下:
♦输出
输出频率                                10 MHz sine wave
振幅                                        0.5 Vrms, ±10 %
相位噪声 (SSB)                      < −130 dBc/Hz (10 Hz)
                                               < −140 dBc/Hz (100 Hz)
失真度                                    < −130 dBc (100 kHz BW)
谐波失真                                < −25 dBc
回波损耗                                >25 dB @ 10 MHz
精度                                       ±5 × 10−11
老化(after 30 days)                <5 × 10−11 (monthly)
                                               <5 × 10−10 (yearly)
短期稳定性                             <2 × 10−11 (1 s)
(Allan variance)                     <1 × 10−11 (10 s)
                                               <2 × 10−12 (100 s)
Holdover                                72 hour Stratum 1 level
Frequency retrace                 ±5 × 10−11 (72 hrs. off then 72 hrs. on)
Settability                               <5 × 10−12
调整范围                                 ±2 × 10−9 (0 to 5 VDC)
                                               ±1 ppm (via RS-232)
预热时间                                <6 minutes (time to lock)
                                               <7 minutes (time to 1 × 10−9)
电压灵敏度                            <2 × 10−11 (1 VDC supply change)
♦电相关
输入电压                                +24 VDC (nom.), +22 VDC (min.),
                                               +30 VDC (max.)
电流                                        2.2 A (warm-up), 0.6 A (steady-state)at 25 °C (Note 1)
保护电压                                ±30 VDC to any pin except rf out
RF protection                        100 mA (stable w/ any termination)
Cal reference out                  5.00 ±0.05 VDC
RS-232                                  9600 baud, 8 bits, no parity, 1 stop bit, 0 to 5V levels with X-on/X-off protocol
1 pps 测试                             ±10 ns (accuracy), ±1 ns (resolution)
1 pps 输出设定                     ±10 ns (accuracy), ±1 ns (resolution)
♦外部环境
操作温度                                −20 °C to +65 °C (baseplate)
温度稳定性                            ±1 × 10−10(−20 °C to +65 °C baseplate)
存储温度                                −55 °C to +85 °C
磁场                                       <2 × 10−10 for 1 Gauss field reversal
相对湿度                                95 % (non-condensing)
♦规格
设计年限                                20 yrs.
尺寸                                       2.00" × 3.00" × 4.00" (HWD)
重量                                       1.32 lbs.
底板螺纹                                4-40 (4 places)
连接器                                   Mates with ITT/Cannon DAM11W1S series
保修                                       Two year parts and labor on defectsin materials and workmanship

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