ta31275 TOSHIBA Semiconductor CORPORATION, ta31275 Datasheet - Page 9
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ta31275
Manufacturer Part Number
ta31275
Description
Am/fm Rf/if Detector Ic For Low Power Wireless System
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TA31275.pdf
(25 pages)
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the REF pin, therefore making the pulse rise quickly.
when specifying a cutoff frequency.
(the bit rate filter time constant takes into account the internal resistance RSSI (30 kΩ))
When the filter constants shown below are used, it is not necessary to set the R constant value.
For the cutoff frequency of the bit rate filter, specify a sufficiently high value for the bit rate to be used.
Specifying a relatively high cutoff frequency for the bit rate filter enables a low capacitor to be used at
When AM is used, the internal resistance of RSSI is used. So, take the output resistance into account
1200 bps
2400 bps
4800 bps
1200 bps
2400 bps
4800 bps
36 kΩ
36 kΩ
36 kΩ
R
R
68 kΩ
68 kΩ
68 kΩ
30 kΩ
30 kΩ
30 kΩ
R9
R9
Quadratic Filter (NRZ)
68 kΩ
68 kΩ
68 kΩ
30 kΩ
30 kΩ
30 kΩ
R10
R10
9
0.033 µF
0.015 µF
4700 pF
2200 pF
6800 pF
0.01 µF
C20
C20
TA31275FN/ TA31275FNG
2200 pF
1000 pF
560 pF
270 pF
150 pF
470 pF
C19
C19
3300 pF
1500 pF
8200 pF
3900 pF
1800 pF
680 pF
C18
C18
03-01-23