TA2030FN
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA2030FN
TV / FM System F / E (1.5V USE)
The TA2030FN is a TV / FM system front end IC, which is
developed for headphone radio in 1.5V use.
It is built in FM F / E and TV F / E (japanese VHF band).
Features
·
Built−in FM F / E and TV F / E
FM mode: 75~109MHz
TV mode: 175~225MHz
·
·
·
·
·
·
·
Suitable for combination with digital tuning system.
Built−in power switch
Built−in FM / TV switch
Built−in IF amplifier
Built−in OSC buffer circuit
Improved inter−modulation characteristics by double balanced type mixer circuit.
Supply current (V
CC
= 1.2V, Ta = 25°C)
FM mode: I
CC
= 4.4mA (typ.)
TV mode: I
CC
= 6.3mA (typ.)
·
Operating supply voltage range (Ta = 25°C)
V
CC (opr)
= 0.95~4V
Weight: 0.09g (typ.)
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2002-10-30
TA2030FN
Block Diagram
2
2002-10-30
TA2030FN
Terminal Explanation
Terminal Voltage: Typical Terminal Voltage at no Signal with Test Circuit.
(V
CC
= 1.2V,
Termi-
nal
No.
1
Terminal
Name
Terminal
Voltage(V)
FM
Input of TV RF signal
(common-base type)
By-pass terminal of TV RF
and MIX
(radiation is lightened by
connected capacitor.)
TV RF tuning circuit is
connected.
―
TV
0.1
Ta = 25°C)
Function
Internal Circuit
TV IN
2
TV BY
―
0.7
15
TV RF
1.2
1.2
3
RF GND
―
By-pass terminal of FM RF
and MIX
(radiation is lightened by
connected capacitor.)
Input of FM RF signal
(common-base type)
―
0
0
4
FM BY
0.7
―
5
FM IN
0.1
―
14
FM RF
FM RF tuning circuit is
connected.
1.2
1.2
Mode switch
V
CC
: TV mode
OPEN / GND: FM mode
6
MODE SW
0
1.2
Power switch
V
CC
: Power on
OPEN / GND: Power off
7
PW SW
1.2
1.2
8
IF OUT
Output of TV / FM IF signal.
Output impedance
330Ω (typ.)
1.1
1.1
MIX coil is connected.
9
MIX OUT
1.2
1.2
3
2002-10-30
TA2030FN
Termi-
nal
No.
Terminal
Name
Terminal
Voltage(V)
FM
TV
Function
Internal Circuit
10
OSC OUT
Output of OSC buffer
circuit.
1.1
1.1
11
FM OSC
FM OSC tank circuit is
connected.
(colpitts type oscillator)
1.2
1.2
12
TV OSC
TV OSC tank circuit is
connected.
(colpitts type oscillator)
1.2
1.2
13
16
V
CC
GND
V
CC
GND(except RF part)
1.2
0
1.2
0
Application Note
1. PW SW
It is necessary to connect an external pull-down resistor with the terminal PW SW (pin(7)), in case that this IC
is turned on due to external noise etc.
2. MODE SW
It is necessary to connect an external pull-down resistor with the terminal MODE SW (pin(6)), in case that this
IC doesn't operate normally due to external noise etc.
3. RF GND
This IC has two GND terminals (pin(3): RF GND, pin(16): GND). External parts shown in below should be
connected with RF GND (pin(3)), and other parts should be connected with GND (pin(16)).
½
By-pass capacitor at pin(14) (FM RF) and pin(15) (TV RF)
½
By-pass capacitor at pin(4) (FM BY) and pin(2) (TV BY)
The pattern diagram of capacitor connected with pin(2) and pin(4) should be shortly, because RF circuit and MIX
circuit operate on the voltage of pin(2) or pin(4).
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2002-10-30
TA2030FN
Maximum Ratings
(Ta = 25°C)
Characteristic
Supply voltage
Power dissipation
Operating temperature
Storage temperature
(Note)
Symbol
V
CC
P
D
T
opr
T
stg
Rating
4.5
400
-25~75
-55~150
Unit
V
mW
°C
(Note) Derated above Ta = 25°C in the proportion of 3.2mW / °C
Electrical Characteristics
Unless Otherwise Specified, V
CC
= 1.2V, Ta = 25°C, f
FM
= 92MHz, f
TV
= 200MHz
∆f
= ± 22.5kHz, f
m
= 1kHz, SW
2
: b
Characteristic
Symbol
I
CC1
Supply current
I
CC2
I
CC3
Conversion gain
Local oscillator
voltage
FM OSC buffer
output voltage
Local oscillator
stop voltage
Conversion gain
Local oscillator
voltage
TV
OSC buffer
output voltage
Local oscillator
stop voltage
Power on current
Power off voltage
TV mode on current
FM mode on
voltage
G
C1
V
OSC1
V
BUF1
V
STP1
G
C2
V
OSC2
V
BUF2
V
STP2
I
7
V
7
1
I
6
V
6
d
c
a
a
V
CC
= 0.95V, V
2
≤
0.2 V
SW
2
: d
V
4
≥
0.4 V
V
CC
= 0.95V, V
2
≤
0.2 V
SW
2
: c
V
4
≤
0.2 V
V
CC
= 0.95V, V
2
≥
0.4 V
V
4
≤
0.2 V
V
CC
= 0.95V, V
2
≤
0.2 V
V
4
≥
0.4 V
3
b
f
osc
= 165MHz
2
Vin = 65dBµV EMF
3
a
f
osc
= 65MHz
2
1
Test
Cir-
cuit
SW
1
Test Condition
IC OFF, SW
2
: a
Vin <
-20bBµV
EMF
Vin = 65dBµV EMF
FM mode
TV mode
Min.
―
―
―
29
―
―
―
25
―
―
―
5
0
5
0
Typ.
0.1
4.4
6.3
33
360
50
0.89
29
180
22
0.86
―
―
―
―
Max.
5
6.6
9.5
―
―
mV
rms
―
0.95
―
―
mV
rms
―
0.95
―
0.3
―
0.3
V
µA
V
µA
V
V
dB
Unit
µA
mA
dB
a
b
5
2002-10-30
单片机
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