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TA2025
LOW NOISE PREAMPLIFIER FOR AUTOREVERSE CAR STEREO
TOSHIBA TA2025P/F
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA2025P, TA2025F
LOW NOISE PREAMPLIFIER FOR AUTOREVERSE CAR STEREO
The TA2025P, TA2025F contains dual amplifier, forward, TA2025P
reverse control switches and metal, normal tape equalizer
control switches.
FEATURE
0 High Voltage Gain
Gvo = 100 dB (Typ.) (VCC =9V, f=1kHz)
o No Input Coupling Capacitor DlP16-P-300-2 54A
0 Low Noise (Equivalent Noise Voltage) TA2025F
VNI = 0.6pVrms (Typ.) (Vcc = 9V, Rg = 6201
BW = 20Hz _ 20kHz, NAB EQ)
0 Low Distortion : THD=0.01% (Typ.)
0 Operating Supply Voltage Range: Vcc(opr.)=6--16V
BLOCK DIAGRAM
C8 ch1
A. +.a-,
Rf "' RNF'" " O0UT SSOP16-P-225-1.00A
_ ft R1 Weight
Gc, R2 DIP16-P-300-2.54A . I.00g (Typ.)
l 6 NF-l 2 OUT-I SSOP16-P-225-1.00A : 0.14g (Typ.)
ch1-F - M h N - VCC
ch1-F 5 tu,, d
chl-R 7 o l
1 ch1 Ru --------- 1 "r-fs/wr/l-cis)
"f l l
+ l 9 BIAS l l
C‘Ii l I
' C4 chit-F ' i
In i" " ; [F/R=swl-o?
ch2-F h,,,, + l
h2 R C5" o AMP-2
ch2 M A N
-R NF-2 OUT-2 GND
t 12 R4 14 16 9
+ -, R3 C9
"' Mv'', + E - ote.
Rf RNF
InNO) : NC y m
980508EBA2
O TOSHIBA is continually working to improve the quality and the reliability of its products. Nevertheless, semiconductor devices in general can
malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing
TOSHIBA products, to observe standards of safety, and to avoid situations in which a malfunction or failure of a TOSHIBA product could cause loss
of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified
operating ranges as set forth in the most recent products specifications Also, please keep in mind the precautions and conditions set forth in the
TOSHIBA Semiconductor Reliability Handbook.
1998-05-15 1/9
TOSHIBA TA2025P/F
APPLICATION INFORMATION
1. FORWARD, REVERSE SELECT SWITCH
(1)Threshold Voltage
Pin (3) is coupled to the base of Q1 (PNP-Tr) as shown in Fig.1.
Threshold voltage (pin (3))--0.7V
ir-OSI/
1.0~VCC
=IE--100yA
Reverse
Forwa rd
(2) The recommended Forward, Reverse
Select circuit is shown in Fig.2.
(3) I3 (In Fig.1) I
l3=12/zA (Max., Ta=25°C) -
2. EQUALIZER CONTROL SWITCH
Pin® is coupled to the base of Q2 (PNP-Tr) as shown in Fig.3. =39"
The emitter potential of Q2 is 3-9V(DC)-
Threshold voltage (pin (E) =2.8V Ci, Q2
Metal 3.2~16V
Normal 0--2.4V
3. C2/C3/C4/C5
Capacitor C2 - C5 may be required for preventing a instability caused
by the pattern layout or interference of external high frequency signal.
MAXIMUM RATINGS (Ta = 25°C)
CHARACTERISTIC
SYMBOL
RATING
Supply Voltage
Power Dissipation (Note)
Operating Temperature
- 30--85
Storage Temperature
(Note)
and of 2.8mW/°C for TA2025F.
Derated above Ta=25°C in the proportion of 6mW/°C for TA2025P
980508EBA2'
O The products described in this document are subject to foreign exchange and foreign trade laws.
0 The information contained herein is presented only as a guide for the apf
CORPORATION for any infringements of intellectual property or other rights D
b implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others.
0 T e information contained herein is subject to change without notice.
lications of our products. No responsibility is assumed by TOSHIBA
the third parties which may result from its use. No license is granted
1998-05-15 2/9
TOSHIBA TA2025P/F
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, Vcc=91/, f=1kHz, RL=10kl Rg=6001 Ta=25oc, Normal EQ)
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
. ICCQ (1) - VIN =0, Normal EQ - 6.0 -
Quiescent Current 'CCQ(2) - lhN=0, Metal EQ - 7.0 10.0 m
Open Loop Voltage Gain Guo - Cf=100pF, Rf=0 - 100 - dB
Maximum Output Voltage VOM - THD=0.5% 1.5 2.1 - Vrms
Total Harmonic Distortion THD - VOUT=0-5Vrms - 0.01 0.06 %
Equivalent Input Noise Rg = 6200, NAB
Voltage l/NI - BW=20Hz--20kHz - 0.6 1.2 pl/rms
Input Resistance RIN - - - 330 - k0
Ripple Rejection R.R. - f=100Hz, V|N=1Vrms - 56 - dB
Cross Talk C.T. - VOUT=0.775VrmS(0dBm) 50 60 - dB
Forward/Reverse Cross Talk C.T. (F/R) - VOUT=0.775Vrm5(0dBm) 60 70 - dB
TEST CIRCUIT
Rf =1800 RNF = 330m Ca
l '" '"" R1=12k0 4+;1/11:IC}O ch1 OUT
+ . . . _ V
c = >.< C6 M g, CC
f 22/1F I _ R2 T
+ t SW1.1 0.01/1F _,
o 18kg re
l 2 vi.,, Ci
a: b 6>NF-‘l 4 2>OUT-‘I
X SWIZII 'd N
T 193; li"
mm; t +33kQ N
J, Vcc
J g got' F
I - i --lF/,=svvi-a"'-,i,,F,"
6209x4 l
IK. GND
Cf =22prF PIN® : NC
SWI-2 0.01prF R3 12kg C9
2t, . + ch2 OUT
Rf =1som RNF=330kQ
.)i(. GVO Test : SW1-1,2=OFF, SW2-1,2=b
1998-05-15 3/9
TOSHIBA
THD - Vout
Normal EQ
VCC29V
RL=10kQ
TOTAL HARMONIC DISTORTION THD (%)
.03 0.1 0.3 1
OUTPUT VOLTAGE Vout (vrms)
ICC, VOM - Vcc
'i VOM TH D = 0.5%
F- ICC (Metal EQ)
p, lcc(Normal EQ)
0 2 4 6 8 10 12 14
SUPPLY VOLTAGE VCC (V)
MAXIMUM OUTPUT VOLTAGE VQM (vrms)
TOTAL HARMONIC DISTORTION THD
OUTPUT VOLTAGE vout (vrms)
TA2025P/F
THD - Vout
Metal EQ
VCC = 9V
RL = mm
.03 0.1 0.3 1 3 5
OUTPUT VOLTAGE Vout (vrms)
Vout - VIN
Vcc=9V
RL=10kQ
NAB 40dB at 1kHz
0. f=100Hz
0.01 0.03 0.1 0.3 1 3 10 30 100
INPUT VOLTAGE VIN (mVrms)
1998-05-15 4/9
TOSHIBA
OPEN LOOP VOLTAGE GAIN GVO
CROSS TALK C.T.
RIPFLE REJECTION RATIO R.R.
100 300 1k 3k 10k 30k 100k
FREQUENCY f (Hz)
C.T. (FSR) - f
VCC=9V
Vout= 0.775Vrms
(OdBm)
RL=10kQ,
C10=1OpF
30 100 300 1k 3k 10k 30k 100k
FREQUENCY f (Hz)
R.R. - f
VCC = 9V
VRippIe = 300mVrms
C10 = 10PF
R9 = 6200
-7 30 100 300 1k 3k 10k 30k 100k
FREQUENCY f (Hz)
VOLTAGE GAIN GV (dB)
CROSS TALK C.T.
RIPPLE REJECTION RATIO R.R.
TA2025P/F
Normal EQ
Metal EQ
100 300 1k 3k 10k 30k 100k
FREQUENCY f (Hz)
C.T. - f
VCC = 9V
Vout=1Vrms
RL=10kQ
30 100 300 1k 3k 10k 30k 100k
FREQUENCY f (Hz)
R.R. - Vcc
Vcc=9V
Vripple=300mVrms
fripp|e=100HZ
C10 =10/1F
Rg =6209
2 4 6 8 10 12 14 16 18
SUPPLY VOLTAGE Vcc (v)
1998-05-15 5/9
TOSHIBA
TA2025P/F
EQUIVALENT INPUT NOISE VOLTAGE
(#Vrms)
ICC (mA)
QUlESCENT CURRENT
OUTPUT DC VOLTAGE VOUT (v)
l/NI - Rg
Vcc=9V
NAB 40dB at 1kHz
BW= 20Hz--20kHz
30 100 300 1k 3k 10k 30k 100k
SIGNAL SOURCE RESISTANCE R9 (Q)
ICCQ - Ta
Metal EQ
Normal EQ
- 40 - 20 0 20 40 60 80 100
AMBIENT TEMPERATURE Ta (''C)
VOUT - Ta
- 40 - 20 0 20 40 60 80 100
AMBIENT TEMPERATURE Ta (°C)
EQUIVALENT INPUT NOISE VOLTAGE
(I’Vrms)
MAXIMUM OUTPUT VOLTAGE VOM (Vrms)
TOTAL HARMONIC DISTORTION THD
VNI - Ta
VCC = 9V
R9 = 6200
NAB 40dB at 1 kHz
DINAUDIO FILTER
0 20 40 60 80 100
AMBIENT TEMPERATURE Ta (°C)
VOM - Ta
Vcc=9V
f=1kHz
THD=0.5%
RL=10kQ
Normal EQ
0 20 40 60 80 100
AMBIENT TEMPERATURE Ta (°C)
THD - Ta
Vcc=9V
f=1kHz
Vout=05Vrms
RL=10kQ
0 20 40 60 80 100
AMBIENT TEMPERATURE Ta (°C)
1998-05-15 6/9
TOSHIBA TA2025P/F
APPLICATION CIRCUIT
8_ ch1
'"" w. +3 I OOUT
Rf=1goa RNF=330kQ T7prF g
C - o u.
_- + d,
+ ll C10 0
ttt Cf --22pF n: I g
Chl-ri, it
ch1-R ( E; l Metal EQ:
t 3.2 --18V
r-- EQ sw 15
I t s) Normal EQ:
I l 0--2.4V
f LL I 1
C1 li, l I
I g I l Forward:
--------------- "----i,- F/RSW , IO-VCC
t Reverse:
ch2-F (f) l 0-0.5V
ch2-R( t l,
\NF-Z hOUT-2 GND
I c 22 y 9' 8
+ f pF C7
0.01 F - C9
VV'. [1 "' 'ar 0 ch2
Rf =1309 RNF = 330kn 47w 9: OUT
PIN® : NC
1998-05-15 7/9
TOSHIBA TA2025P/F
OUTLINE DRAWING
DlP16-P-300-2.54A Unit : mm
Cl r'-n m F-n fl '-l r-n r-1 d
y ' |_I L..U L_l l-l L_I V
V 19.75MAX "
19.25i0.2 V.
C.9§i0.1
“L 'R-r:
{r m' "li'
I -f..'?., v
ze' I cr?
ll d m
0.735TYP l‘1.410.1 “40.5101 0.25
Weight : 1.00g (Typ.)
1998-05-15 8/9
TOSHIBA TA2025P/F
OUTLINE DRAWING
SSOP16-P-225-1.00A Unit : mm
16 9 -
H Fl Fl Fl H H Fl H " . A?
Q! “2 N :23
'R fi?, ts J;
to w. m N
C) mt' at Si
' ld I ' ld ld ld ld IL 2.r.
0.6TYP . A 0.41031 f
"l l" \
H. 8.7MAX H,
" 8.2i0.2 M g
“i M gg
$1 a 12
LO“ 0) F;
ri, 4' o !
o" ir-
5,li' ' Jh525kih2
Weight : 0.14g (Typ.)
1998-05-15 9/9
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