TA32305EVKIT-433 Toshiba, TA32305EVKIT-433 Datasheet - Page 9

• Manufacturer Part Number: TA32305EVKIT-433
• Description: KIT EVALUATION 433MHZ TA32305
• Manufacturer: Toshiba
• Type: Transceiverr

Specifications of TA32305EVKIT-433

• Contents: 2 Transceiver Modules, 2 Antennas and CD-ROM
• For Use With/related Products: TA32305 Transceiver Module 433 MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

12. Control Terminal for Quick Charge Circuit (CHARGE)
13. Bit Rate Filter for FM
14. Bit Rate Filter for AM
charge a given period by time constant of internal resistance and outside capacitance. Enabling the
CHARGE pin requires an external capacitor. In normal operation, connect a capacitor having the same
capacitance as that of the capacitor connected to the REF pin (pin 22).
the REF pin, therefore making the pulse rise quickly.
(the bit rate filter time constant takes into account the internal resistance RSSI (24 kΩ))
(the bit rate filter time constant takes into account the internal resistance RSSI (24 kΩ)
CHARGE (18 pin) is control terminal for quick charge circuit. REF (22 pin) control terminal for quick
The current FM bit rate filter is used as a tertiary filter.
The current AM bit rate filter is used as a quadratic filter.
In addition, the current AM bit rate filter can be used as a tertiary filter.
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 specifying a cutoff frequency.
If the connected external capacitor (C30) is 0.1 µF, the quick charge time is 7 ms (typically).
If the filter is to be used at a rate other than 1200 bps, please change the filter constant.
If the filter is to be used at a rate other than 1200 bps, please change the filter constant.
If the filter is to be used at a rate other than 1200 bps, please change the filter constant.
When AM is used, the internal resistance of RSSI is used. So, take the output resistance into account
1200 bps
2400 bps
4800 bps
9600 bps
1200 bps
2400 bps
4800 bps
9600 bps
1200 bps
2400 bps
4800 bps
9600 bps
68 kΩ
68 kΩ
68 kΩ
68 kΩ
43 kΩ
43 kΩ
43 kΩ
68 kΩ
R12
R15
68 kΩ
68 kΩ
68 kΩ
68 kΩ
43 kΩ
43 kΩ
43 kΩ
43 kΩ
68 kΩ
68 kΩ
68 kΩ
68 kΩ
R13
R15
R13
Quadratic Filter (NRZ)
Quadratic Filter (NRZ)
Quadratic Filter (NRZ)
68 kΩ
68 kΩ
68 kΩ
68 kΩ
68 kΩ
68 kΩ
68 kΩ
68 kΩ
68 kΩ
68 kΩ
68 kΩ
68 kΩ
R14
R12
R12
9
4700 pF
2200 pF
1200 pF
4700 pF
2200 pF
1000 pF
4700 pF
2200 pF
1200 pF
0.01 µF
0.01 µF
470 pF
C14
C14
C14
1500 pF
560 pF
270 pF
150 pF
680 pF
390 pF
180 pF
560 pF
270 pF
150 pF
68 pF
68 pF
C15
C15
C15
TA32305FN/FNG
3300 pF
1500 pF
3300 pF
1500 pF
680 pF
390 pF
680 pF
390 pF
C18
C18
2003-12-04
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