TA32305FN/FNG
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA32305FN/TA32305FNG*
RF 1chip Receiver and Transmitter for low power wireless
The TA32305FN is an RF 1 chip receiver and transmitter IC. Receiver is for AM/FM radio. The IC incorporates an RF amp, 2-level comparator, and local ×8 circuit. This IC’s main use is remote control.
Features
• • • • • • RF frequency: 240 to 450 MHz (multiplication is used) IF frequency: 80 kHz Operating voltage range: 2. 2 to 5. 5 V Current dissipation: TX 4. 3 mA/ RX 5. 6 mA (FM), 5. 3 mA (AM) (except current at oscillator circuit) Current dissipation at BS: 0 µA (typ. ) Small package: 30-pin SSOP (0. 65 mm pitch)
SSOP30-P-300-0. 65
www. DataSheet4U. com
Weight: 0. 17 g (typ)
Block Diagram
SAW
30 29 TX RX DATA DATA
28 RX
26 25 24 23 22 21 20 19 27 18 17 16 RF CHARGE RF RF TX LPF LPF AF RSSI MIX REF GND1 OUT OUT IN DEC IN IN OUT RSSI Comparator
×8
OSC VCC1 IN 1 2
MIX U/L OUT 4 3
IFF IN 5
IFF OUT
Detector TX AM/ TX IF Vcc2 IF IN GND2 OUT QUAD Vcc3 Power FM OUT 6 7 8 9 10 11 12 13 14 15
*: TA32305FNG Package is Pb-Free.
1
2003-12-04
TA32305FN/FNG
Pin Description
(the values of resistor and capacitor in the internal equivalent circuit are typical. )
Pin No. Pin Name Function Internal Equivalent Circuit
50 kΩ
10 kΩ
10 kΩ
1
OSC IN
Local oscillator input pin.
1
2 pF
15 kΩ
2
VCC1
Local’ power supply pin.
www. DataSheet4U. com 3 U/L
U/L switch pin. OPEN : Upper Local L : Lower Local Do not connect Vcc.
10 kΩ
3
100 kΩ
Mixer output pin. 4 MIX OUT The output impedance of the pin is typically 225 Ω.
5
IFF IN
IF filter input pin. 5 6
200 Ω
4
15 kΩ
6
IFF OUT
IFfilter output pin.
7
VCC2
Power supply pin 2.
8
IF IN
IF amp input pin. 10k Ω 10k Ω
200 Ω 10
8 10 IF OUT IF amp output pin.
9
GND2
GND pin 2.
2
2003-12-04
100 Ω
TA32305FN/FNG
Pin No. Pin Name Function Internal Equivalent Circuit
32 kΩ 11 10k Ω •\ 15 13 10 kΩ 14 120 kΩ 19 10 kΩ 3 kΩ 16 17 250 Ω 18 100 kΩ 5 kΩ
11
QUA...