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R1131N271A-TR-F Datasheet
Output Detector (each cbannei} Supply Voltage - Vcc .. ........ 7V (1 Minute Maximum) Current -lo .., . 25mA Collector Power Dissipation . . :. I .. ... 40mW Voltage - Vo .. .... 7V
R1131N271A-TR-F Price

PIN NO. I/O SIGNAL PIN NO. I/O SIGNAL PIN NO. I/O SIGNAL PIN NO. I/O SIGNAL
1 O OUT9 1 3 l TIN4 25 l CV9 37 l OVD
2 O OUT8 14 l TIN3 26 l CV8 38 l TMOD4
3 O OUT7 1 5 l TIN2 27 l CV7 39 l TMOD3
4 O OUT6 16 l TMOD1 28 l CV6 40 l TMOD2
5 O OUT5 1 7 O TOUT 29 l CV5 41 l GH
6 GND 1 8 GND 30 l CV4 42 GND
7 O OUT4 1 9 VDD 31 GND 43 VDD
8 O OUT3 20 l FSC8 32 l CV3 44 l FSC4
9 O OUT2 21 l CLR 33 l CV2 45 l TMODO
1 0 O OUT1 22 l DCSY 34 l CV1 46 l PAL/ NT
1 1 O OUTO 23 O DSSY 35 l CVO 47 l TIN1
12 O OPARI 24 O DRSY 36 l IPARI 48 l TINO


R1131N271A-TR-F on stock

Pin No.
44L SOP (A23L2616) 48L TSOP (A23L2616) 48L TSOP (A23L26161) Symbol Description
1-11, 34-44 2-23 1-10, 15-25, 48 AO-A21 Address Inputs
15-22, 24-30 28-35, 39-45 29-36, 38-44 00-014 Data Outputs
31 46 45 015/A-1 Output 15(WORD mode) /LSB Address (BYTE mode)
12 24 26 CE Chip Enable Input
14 27 28 OE Output Enable Input
33 1 47 BYTE BYTE or WORD mode Selection
23 37-38 37 VCC Power Supply
13, 32 25-26,47-48 27, 46 GND Ground
1 36 11-14 NC No Connection


When using phase comparatorI, the loop filter frequency response may be used to limit the capture range of the loop, that is the range of input frequencies that the loop will lock onto. This property may be used to provide a degree of selectivity if required. The following table shows filter component values for various capture ranges. It should be noted that the loop filter used here is the simple 'lag' filter (i.e. R2 = O), this is to minimise ripple at 2 x fir on the loop filter output which would cause frequency modulation of the switched capacitor filter response.