TA8120P ,C-QUAM AM STEREO DECODER39097247WI03HIBA: ELECTRONIC ”7" 02E 17756c-QUAM69AM STEREO DECODERTA8120P is a c-tpos) stereo deco ..
TA8122 ,3V AV/FM 1CHIP TUNER ICTOSHIBA TA8122,23AN/AFTA8122AN, TA8122AF, TA8123AN, TA8123AFTA8122AN/AF and TA8123AN/AF are the AM/ ..
TA8122AF ,3V AV / FM 1Chip Tuner ICTA8122, 23AN / AF TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA8122AN, TA8122AF ..
TA8122AN ,3V AV / FM 1Chip Tuner ICTA8122, 23AN / AF TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA8122AN, TA8122AF ..
TA8123AF ,3V AV / FM 1Chip Tuner ICTA8122, 23AN / AF TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA8122AN, TA8122AF ..
TA8123AN ,3V AV / FM 1Chip Tuner ICFeatures Built−in FM F / E, AM / FM IF and FM ST DET AM detector coil, FM IFT and IF coupling ..
TC55V040AFT-55 ,524,288-WORD BY 8-BIT FULL CMOS STATIC RAMfeatures using CE1 and CE2 Data retention supply voltage of 1.5 to 3.6 V Access Time 55 ns 70 ns ..
TC55V040AFT-70 ,524,288-WORD BY 8-BIT FULL CMOS STATIC RAMTC55V040AFT-55,-70 TOSHIBA MOS DIGITAL INTEGRATED CIRCUIT SILICON GATE CMOS 524,288-WORD BY 8-BIT ..
TC55V1001AF ,131,072-WORD BY 8-BIT CMOS STATIC RAMTOSH I BA TC55V1001AF/AFT/ATR/AST/ASR-85,-10,-85L,-1OL131 ,072-WORD BY 8-BIT STATIC RAMThe TC55V100 ..
TC55V1001AF-10 ,131,072-WORD BY 8-BIT CMOS STATIC RAMapplications where high speed, low power and battery backup arerequired. The TC55V1001AF/AFT/ATR/AS ..
TC55V1001AF-10L ,131,072-WORD BY 8-BIT CMOS STATIC RAMTOSH I BA TC55V1001AF/AFT/ATR/AST/ASR-85,-10,-85L,-1OL131 ,072-WORD BY 8-BIT STATIC RAMThe TC55V100 ..
TC55V1001AF-85 ,131,072-WORD BY 8-BIT CMOS STATIC RAMTOSH I BA TC55V1001AF/AFT/ATR/AST/ASR-85,-10,-85L,-1OL131 ,072-WORD BY 8-BIT STATIC RAMThe TC55V100 ..
TA8120P
C-QUAM AM STEREO DECODER
TOSHIBAw ELECTRONIC na 'iirii1i7iti"i7"i' iilllh'77Si:, n ii"'ir
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02E 17756
c-QUAM59AM STEREO DECODER
TA8120P is a c-tPilar, stereo decoding and pilot
detection system IC.
It contains L+R signal detector, L-R signal detector,
pilot signal detector and matrix circuit.
It ls suitable for DTS automoble radio and others.
. Full wave envelope detector (L+R signal).
. PLL detector (L-R signal).
. No adjustable VCO (Voltage controled oscillator)
for PLL detector.
. Pilot signal (25Hz) detector.
. Stereo indicator driving.
. Forced monaural switching circuit.
. Internal level detector can be used as ACC source.
Unit in mm
"2eNetetr"tr-qee'he'2Pm
"ra-_-ah-Bb-gc...--"'....'.. d
g zaoqu 162i025
-r-zr-u,'. “
z 05i015 254iu25 0
a -- +01
3 14i015 mm-aos
Lead pitch is 254 and
i025 against theoreti
tolerance is
cal center of
each lead that is obtained on the
basis of No.1 and No.20 leads.
. Operating supply voltage t 1rcc(opr)-"6-12v, (Ta=25°C) :ZEiZBA SDZOA-P
Weight t 1.4g
MAX I MUM RAT I NGS (Ta=25 ° C)
CHARACTERISTIC SYMBOL RATING UNIT
Supply Voltage VCC 14 V
Lamp Current 115 50 mA
Power Dissipation PD* 1.2 il
Operating Temperature Topr -30-85 "c ,
Storage Temperature Tstg -55-150 "c i
* t Derated above Ta=25°C in the proportidn of 9.6mW/°C. E
C-QUAMQDis a trademark of Motorola Inc.. .
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(450knz)
IFIN ts----'
BLOC K DI AGRAM
1ti-arnct2
EL IMI NAT I ON
'iii'''
4 OUT_
1/coa 0
DISTORT ION
ENV DET
_,,isi,,,mo,,i,,,vli,.,,,
"jiTrg
+L+ItW
j,,,m,,k
ERR AMP
f_____
'iii',,).,
BPFsz/BPF
/l,r,rsri
LOCK A
DECODE.
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////— T-77 ""r.F77sr.ii" 05 Z
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, Vcc=8.0V, fitt--450kHz, vin=200mvm5, fm=lkHz,
SW1=C, Ta=25°C, Loin! and ROOT are monitored)
TEST .
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Quiescent Current IccQ Vi=0 20 30 40 mA
Input Signal Range V1(opr) Unmodulated 100 200 357 mVrms
5tyg Lonly Mod or I
V t ' ', 160 220 280
Audio Output Level o(s ) 5orf, Ronly Mod P=5‘ (Note) mVrms
V0(mono) 502 Mod . . . 80 110 11.0
THI) THD(mono) 501f Mod - 0.5 - Z
THD(St) 5or, L=R Mod P=SZ (Note) - 1.0 -
5or, Lonly Mod or -
V Channel Separation Sep 507, Ronly Mod P=57. (Note) 30 dB
After release of forced
Pilot Acquisition monaural:
Tlock , - 300 - ms
Time, V.CO Locked SH1--a--c, p--.5r,
Input Impedance Ri - 20 27 - kn .
Ci - - 6.0 - pF !
Output Impedance Ro - - - 100 200 n 1
Level Detector V4(1) V1=0 _ 1,4 1.7 2.0 V 3
Filter Voltage V4(2) V1=200mVrms - 2.5 - .
Lock Detector V10(l) ' In Lock - 7.8 - V .i
Filter Voltage V10(2) Monaural - 0.8 - l
Fbrce to Monaural
Monaural Mode V9(1) _ _ 2.0 2.5 - ll r
P=57., sw1=b . l
Force to Monaural i
Automatic Mode V9(2) - 3.5 3.7 V .
Note t After stereo mode is locked, PBSZ‘OZ
2:: -aT..t'l'l'dlTrla tlt-- =rdlr3a",a"awlr.a''fra'ar.3ra',". AUDIO LINEAR "2ztrrcr, ,
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TERMINAL VOLTAGE AT QUIESCENT TIME
(Vcc=8V, Ta=25''c, typical value at the test circuit)
PIN No . TERMINAL VOLTAGE (V)
1 I -Def. 7 . ' '
2 Env . Det 7 . 4
3 IF in 3 . 6
4 Level . Det 1 . 7
5 Error 1. 6
6 VCC 8 . 0
7 Lou’r 0 . 5
8 ROOT 0 . 5
9 Mode Sellect: 8. 0
10 Lock 8 . O
11 AGC‘d Q out 1.0
12 Co Channel in 0 . 6
13 BPF in 0 . 6
14 BPF odt 0.6
15 LED Drive -
16 GND 0
17 VCO in 2 . 9
18 VCO out 6 . 7
19 Phase-Det 3 . o." . 3
20 Q Det . 7.4
Tara TO s H I BAxarar' = s,'.".';, Al,1Witr/rA''a-aGlr.r,
- 916-
Vi tyo Ip.
§-—1Fd
TEST CIRCUIT
PHAS E
Bin = 271:0
ELIMINAT ION
1/%050
DISTORTION
ENV DET
ERRAMP
4.7/1}! 4500 4000
4.71:9. I
220k!)
DECODE
SWITCH
MATRIX
“o = 1000,“ °
no =1oo ‘
1“" - F +Gj
. PRODUCT OF MURATA MANUFACTURING
CAPACITOR
" PRODUCT 0F MURATA MANUFACTURING
TEMPERATURE COMPENSATING
CSCSOOK7
100k!)
90- so- u- 1
(WZIQVJL .—
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CERAMIC RESONATOR
, CSA3 . 6MT7
e. 2 FORCED MONAURAL
c 2 AUTOMATIC
CHANGED VER
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""'s1biariirsir TOSHIBA ELECTRONIC _02E_ 12781 b
TM120P ''ii'iiii(:,i::ii)iisi("/"-i t T.. 77- 05-. 05 ('
1. AM Stereo of Motorola System
The modulated-wave generation mechanism of motorola system stereo is as shown in
Fig.1.
The signal which is balance-modulated by the summed signal (L+R) component of the
audio signal, and the signal in which 90'' phase-shifted carrier ls balande-
modulated with the summed signal of the differential signal (L-R) and the pilot
signal are produced.
These signals are orthogonally modulated, their AN component ls eliminated, and
i the signals are finally balance-modulated with the summed signal (L+R).
AM stereo modulated wave of Motorola system is provided with a useful merit of
orthogonal modulation (multiple broadcasting ls pogsible in narrow band) and has
the complete compatibility with the conventional monaurai receiver.
This system ls called c-auAkPtcompatib1e Quadrature Amplitude Modulation).
Orthogonal modulation wave
E1(er-=t1+rwR)ecuuct+tL-R)eosovct+rr/2)
- L-R)
=~/(l+L+R)2+(L-R)2cos{ wct+tan 1 -a0ii-h)o- , ..... /1)
c-tpdf wave
. L-it .
E2(tr=(1+L+R)teosloct+tan-1 -ry+eiclt-l)-- }
=c050 . E1(t) .... (2)
= -1 . (L-R) = -.---.------_-.---_
Providing , tan (1+L+R) coso (L+L+R)2+ (L-RP
srraxT0SHIBAru'c.utr- :=' z: cf/re == z:
'-"xW:EzC2:%$a% L=SSGiGi =E===t=TA=rsaEgiaaFE=ER=4iF _--' Eaaa=EaE
-_e.%ieEeieeeeEae%qigeN
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W=et=e=i==ak2= ae--"--''"-
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_/,ji'i'i(,,f/'/'/r//, T- 77- "iTir..'aj..Fi-" 05 "'_-?i-).:-iii:-i-,iis-,-t--rii
G-QUAM®
AMPLITUDE
L o L +R MODULATING
I ' TRANSMITTER
BALANCED I
" MODULATION
H . LIMITER
g CARRIEch . l
Ro-- L-R go°pmsE ORTHOGONAL
SHIFT MODULATED WAVE
L PILOT 2532 BALANCED
MODULATION
Fig. 1. Modulated-Wave Generation Principle of Motorola System
(c-QUAMG3
0RT110t?0NALLY MODULATED WAVE
v/ (1+L+R)2+(Ir-R)2
_.._.._........_
Distortion caused by differential signal.
The degree of distortion depends upon the
level of the differential signal.
(In case received with the monaural radio
Fig. 2. Difference Among Orthogonal Modul
’wmwu- u
c-paso WAVE
( L-m) co 30
s/ (1+L+R) 2+(L-R) 2
cosd component causes distortion
(In case received with the orthogonally
synchronous detection.)
cost? =
ation, QUAM and c-wArf
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V‘9097247 TOSHIBA. ELECTRONIC ' . _ bite 17753 _ b'
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=*"TOSHIBA . are' -llt_
Distortion Elimination Through I (tn-phase) Demodulation of Synchronous Detection
When C-QUAMGasignal which is the transformation of QUAM signal is syniuonous1y
detected, directly the distortion of cos0 component is generated as shown in Fig.2.
Therefore, the distortion is eliminated through the procedures described below.
c-aaPsignal is converted into QUAM signal by means of comparing the envelope
detection output and I (in-phase) demodulation output made through the in-phase
synchronous by using the error AMP., and by means of negatively feeding back the
output.
_ This QUAM signal is orthogonally and synchronously detected to obtain Q demodulated
output having small distortion.
Pilot Detection and Pilot Interference Detection Circuit
In adequate receiving condition, seven cycles of the pilot signal are counted
leading to turn out the stereo mode. However, when the beat due to the interference
signal is generated near 25Hz, the count mode of 37 cycles is instantaneously turned
The count-mode is reset every time when the interference is detected. Two kinds of
procedures are available for detecting the interference as follows.
(1) In case of beat generation due to the interference wave of the same frequency
as that of the pilot signal 25Hz.
The state in Which the amplitude is reduced due to the phase difference between
the pilot signal and the beat signal is detected with 7-count mode.
For changing to the stereo mode, the modulation degree of minimum about 3% in
seven cycles is necessary.
(2) In case of beat generation near the pilot signal of 25Hz
Due to the resistance between the interference detection circuit and the pilot
_ BPF output connected to the input 12 pin, the frequency characteristic of the
interference detection input 12 pin becomes the notch characteristic of 25Hz
with f0.
By using this notch characteristic, the beat near 25Hz is detected.
The beat detection is to be performed at -43dBm (f=10Hz).
The operations of (1) and (2) are made to be stopped when the stereo mode is
once turned out.
790977V24V7WT‘OSHI‘BA. ELECTRONIC
//// mmzop
T-7 T. 05 05
02E 17784
k, Interference Detection After Changeover to Stereo Mode
I demodulated output and Q demodulated output are observed in IC, and when the
condition below Is turned out, the mode is designed to be forcibly changed over
to the monaural mode.
(1) When PLL ls unlocked.
(2) When beat is generated according to neighboring Interference.
(3) When noise is generate) in demodulation output due to reduction of input
signal level.
5. Sensitivity for Pilot-On
By changing the external constant,
altered.
tl (band width) and Ao (sensitivity) can be
Set Q and A0, and determine Ra-Rc with the expression below.
= ____Q__
Re rt fo C
Ra 2A0
l: RaRc
Rb 4QRa-Rc
Note'. Ao is the gain at fa.
Ru 0:: c .
1ntr--0---w, tt <5 out
AUDIO LINEAR ICrrarcr.
- =. mum - -?e'~nn r . Pr. »
TOSHIBA, ELECTRONIC DE DEI] “105729? Clfn'?7la5 i l)
90972217 TOSHIBA. ELECTRONIC 02E 17765. D
TMIMP "iiiiii)): _ "TriirdiiTdii"
CAUTIONS FOR APPLI CATION
1. For measuring the separation and the distortion in stereo mode, care must be
taken because the characteristics change according to the modulation precision
of the applied signal generator.
2. At measuring the above characteristics, the features described in the technical
data are sometimes unable to be realized unless the modulation by the pilot
signal is made off.
This is caused by the fact that since the pilot signal of 25Hz leaks from the
outputs L out and R out, the leakage is detected by the tester as the signals.
3. The output of AM tuner IC ls connected to the Input IF in of the medium frequency
signal.
If the noise or the spurious other than the medium frequency signal is contained,
the noise or the spurious ls detected and the phenomena below are liable to be
generated. ' .
Use this IC after enough investigation of AN tuner IC to be connected to the fore
stage. _ .
(a) When antenna input is no-signal, detection output noise grows large.
(b) S/N at stereo mode deteriorates.
- mm 4....“ WW.
'r/ag','.'. Tt3SHIBAsrs"a,us wmm m-..”
T922--
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- 9097247 TObHI_BA:V ELECTRONIC D_2E_ 17768 D
vo(s'r). THD(ST) - vi (L---.-R)
500 tio
GOO o ft GO A
Iccq, - Vcc tit, i
li o IO e. i
a h 10 a
< t, H
A tio 5
E H ow-105dBu tt B
as "i', so 5 g
hi ti td
8 E 10 g.
a a g Q
5 05 a
2 l 6 8 1o 12 " 3 us tf
POWER SUFFIX Vac (V)
; 1 GI
's TO 80 90 100 110 120
IF INPUT VOLTAGE _ (assp)
V0 (ST), THD(ST) - " v0 (ST) ' THD(ST) - vi (L--R)
(L OR R ONLY) _
500 50 BOO 50
300 30 300 oft 30
-v0 (er) te t5
A 100 10 A 100 10 A
h tl E E
tt v 't V
5 60 5 a v 50 5 Q
A r A H
tg so 3 tl so 3 o
u f?, V H
”o 3 rf' E
TKD(ST) z
ti 10 1 3 5: IO 1 f?,
a H g E
g g ,° 8
5 05 tt o 5 tits Je,
E n iii
g 3 aa g g 3 05 E:
.~ g m
1 01 1 al
05 005 05 005
" tro 90 100 110 120 80 90 100 110 120
IF INPUT VOLTAGE vi (dBu) IF INPUT VOLTAGE Irs (am)
='tcr, rcll'ét 4.: -r" -'atrdTaL"'l1.'r, AUDIO LINEAR IC===
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9097247 TOSHIBA ELECTRONIC 02E 17767 D
TABIZOP \ "r-i-st-rs-ri-i---
88p. V0(ST), TrrD(ST)-rm (L=-R. L OR R ONLY)
5 o Ci?
' VO(L=R v
40 B t!
A _ Sap M
9 o 'd
V E L, It 25% H
Fla . m g
z 20 p
tcl,, E
_ a 10 Ie=tat11rf2 tl
MB 005 tll as 05 1 s 5 10 so
MODULATION FREQUENCY rm (kHz)
VO(ST). THD(ST) - rm (L=-R)
A L=-R 50%
Ill . r‘
v vo(sr) tes
cr ttl
005 005 til . a3 tits . 1 s 5 10 so
MODULATION FREQUENCY rm (kHz)
. = 'daiiEeEiEEEi a ihiiifid "khhe= IE=E EeSEE iteeteegeit't'eeiMHesee .L'we.“ Eh9EEgieiiiiaE4ii 'stkietete'eSee fgtEhkra9>
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.,,is/ii'ii;,)'/'/r-,
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TMINI?
T-. "iTiiC0s_..0s- Oli-. 05
s-rmo msrommu RATIO THIJ(B’1‘) (%)
TED (s'r) (%)
STEREO DISTORTION RATIO
mmmmm-
""b.qt-tt.q.hrH.r..Mt-
TRD (ST), vo(s'r) w-Mott (L=R)
I MONAURAL
IBD (ST) , vo (ST) - Mdo (Lr----at)
MODULATION DEGREE Mod. (%)
MODULATION DEGREE Mod. (76)
STEREO OUTPUT v°(s'r) (mvrme)
STEREO OUTPUT V0 (81') (mvms)
--925 =
STEREO DIETORTION RATIO TED(ST) ($9)
THD(ST), VO(ST)- -Mod '
o ao AO
MODULATION DEGREE Mod. (%)
A.r..r"-r.rr_.rq..r-..-a'.-tr-.".."
1a- -_tt.Mr..MlFlF...6e0r.Hlr-.rr"
(L OR R ONLY)
ammo OUTPUT v0 (8U) (mvms)
60 BO 100
AUDIO LINEAR "2'cra'irat
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AGc'do. OUTPUT v0 (AGO) (d3)
AGC’dQ, OUTPUT Vo (me) (:13)
. L= -R, 100Ha, Boro
o PILOT =5% ONLY
L--..) 20%
PILOT 0%
IF in _
o 112:113/1
. loadbu
. 10GSBP
V0(AGC) - vi
96 100 104
0:15 =210mvme
ot1B=2a6mlrrms
108 112 116
IF INPUT VOLTAGE Vi (amt)
vo (AGC) - rm
canon = Bimvrme,
5 10 GO
MODURAT ION FREQUENCY
"r926--
60 100 500
fm (112)
.¥:«W¥rnm-;mwwr.t1=~nurnmmaret-l-zwm—mq-x-rwu-w’:~vmwruflw—rfi-v - "iiti+EE5EEEaaiiEEEEEEa5iE? e-r:
TOSHIBA, ELECTRONIC ue DEI] ”IDENEH? 001mm SIT
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9997247 TOSHIBA. Elt2TRPNAi2 '_'02E 1777'0, - pm
oijjii'if/'/'/i/'/1--r-_..s-eii-,i,isr--rs, T-. "7.r7_r.os" 05 05
Toll - fm
Trin=-3OtBm
0dB=-12.5dBm .
H Ar .
S f u I.
E (CONSTANT IS THE SAME TO
:' THAT DI? TEST CIRCUIT )
8 .12 16 20 24 28 B2 36 40 " !
MODURATION FREQUENCY fm (Hz) E
V012 - fm
Vin=-34dBm
OdB=-4.L.6dBm
ii g V012 x I
( CONSTANT IS THE SAME T0) V g
THAT OF TEST CIRCUIT
3 t5 10 30 50 100 GOO ,
‘Mommmrou FREQUENCY rm (Hz) . _ l
'a"/r.'a' --l'd "PP'-"'""'"-'-',' c'aTJ.'Tao".Td'lp ‘3: AUDIO LINEAR tCrltri'drd'r. i
_ --927- _ "i
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9097247 TOSHIBA. ELECTRONIC
TABIZOP \\ . "iTiiriiirai-_ 05 05
02E 17771 _D
STEREO OUTPUT Vo (ST) (mvrm)
V°(ST) - Ta. (L=R)
ammo DISTORTION RATIO
TED (7a)
-20 0 20 4O 60 BO 100
AMBIENT TEMPERATURE Ta CC)
Sep - Ta (L OR R ONLY)
THD(ST) - Ta (L=R)
-20 O 20 IO 60 BO 100
AMBIENT TEMPERATURE Tacc)
ri:'?,' 20
~20 o 20 IO 60 so 100
AMBIENT TEMPERATURE Ta CC)
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