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TA2002FN 데이터시트 PDF




Toshiba에서 제조한 전자 부품 TA2002FN은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

PDF 형식의 TA2002FN 자료 제공

부품번호 TA2002FN 기능
기능 STEREO HEADPHONE AMPLIFIER (3V USE)
제조업체 Toshiba
로고 Toshiba 로고


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TA2002FN 데이터시트, 핀배열, 회로
TA2002F / FN
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA2002F,TA2002FN
Stereo Headphone Amplifier (3V USE)
The TA2002F, TA2002FN are developed for playback stereo
headphone equipments (3V use).
They are built in dual autoreverse preamplifier, dual OCL
power amplifier, and a ripple filter.
Features
Power amplifier stage
· OCL (output condenserless)
· Low noise: Vno = 22µVrms (typ.)
· Excellent ripple rejection ratio: RR = 62dB (typ.)
· Voltage gain: GV = 27dB (typ.)
· Builtin a power amplifier mute
· Builtin input capacitor for reducing buzz noise
Preamplifier stage
· Autoreverse with F / R control switch
· Input coupling condenserless
· Low noise: Vni = 1.3µVrms (typ.)
· Builtin a preamplifier mute
· Builtin input capacitor for reducing buzz noise
Total
· Builtin a ripple filter
Weight
SSOP24P3001.00
SSOP24P3000.65A
· Builtin a power switch
· Low quiescent current : ICCQ = 11.5mA (typ.) (VCC = 3V, Ta = 25°C)
· Operating supply voltage range: VCC (opr) = 1.8~4.5V (Ta = 25°C)
: 0.32 g (typ.)
: 0.14 g (typ.)
1 2002-10-30




TA2002FN pdf, 반도체, 판매, 대치품
Terminal
No. Name
10 F / R SW
Function
Forward / reverse mode switch.
OPEN : Forward mode
"L" level: Reverse mode
This terminal can't be connected
with GND line directly.
In case of reverse mode, a
resistor (R = 180k~270k)
should be connected to GND.
12 PW GND
GND for power drive stage.
13 OUTC
Output terminal of center power
amplifier.
15 VCC
16 BASE
Base bias of an external PNP
transistor for ripple filer.
17 RF OUT
18 PRE SW
Ripple filter output.
Ripple filter circuit supplies
internal circuit except power
amplifier circuit with power
source.
Muting switch for preamplifier.
V17(RF OUT) : Preamp. off
OPEN
: Preamp. on
This terminal can't be connected
with GND line directly.
In case that terminal is
connected with GND line, a
resistor (R 10k) should be
connected to GND.
24 VREF
Reference voltage.
Preamplifier and power amplifier
operate on this reference.
TA2002F / FN
Internal Circuit
17
330k
10
1k
Terminal
Voltage
(V)
to PRE
SW
24
0
13 1.3
RF OUT
7
VCC
QX
17 16 15
3
2.3
2.6
17
18 1k100k
to F / R
SW
17
24 +
1.3
4 2002-10-30

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TA2002FN 전자부품, 판매, 대치품
TA2002F / FN
(7) Increase of ripple filter current
It is built in PNP transistor for a ripple filter, the current
capacity is about 10mA.
Then this IC can be increased the current capacity of the
ripple filter with an external transistor QX (exp. 2SA1362). In
this case, as the current gain is up, it is necessary to connect
external parts for phase-compensation (see Fig.4). And it is
necessary to stabilize the ripple filter circuit carefully, because
the ripple filter circuit supplies internal circuit except power
amplifier circuit with power source.
VCC
QX RF out
10k43
15 16
0.22µF
Monolithic
17 ceramic condenser
VCC
Base RF OUT
Fig.4 Increase of ripple filter current
(8) Pattern layout
(a) The GND line of pin(1) (PRE GND) should be isolated from that of pin(12) (PW GND) at the GND point,
where the VCC decoupling condenser is placed.
(b) The GND line of capacitor (for ripple filter) should be isolated from that of compensation capacitor, at the
point of pin(12) (PW GND).
(c) The pattern diagram between the pin(24) (VREF) and capacitor should be made shortly.
As for pin(1) (PRE GND), it's as well.
(d) The pattern diagram between the pin(12) (PW GND) and compensation capacitor, should be shortly. And this
positive line of compensation capacitor should be kept away from the terminals of PW IN, pin(6), (19).
(e) The lines of PW IN should be kept away from those of PW OUT. And each of the PW OUT lines should be
kept away.
See the example of pattern layout as shown next page.
(9) Oscillation precaution
Small temperature coefficient and excellent frequency characteristic is needed by capacitors below.
· Oscillation preventing capacitors for power amplifier output.
· Bypass capacitor for ripple filter
· Capacitor between VCC and GND
· Capacitor between VREF and GND
7 2002-10-30

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관련 데이터시트

부품번호상세설명 및 기능제조사
TA2002F

STEREO HEADPHONE AMPLIFIER (3V USE)

Toshiba
Toshiba
TA2002FN

STEREO HEADPHONE AMPLIFIER (3V USE)

Toshiba
Toshiba

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