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TL8857F
NTSC SKEW CORRECTION IC FOR VCR
TOSHIBA
TL8857F
TENTATIVE TOSHIBA CCD ANALOG PROCESSOR INTEGRATED CIRCUIT SILICON MONOLITHIC
TL8857F
NTSC SKEW CORRECTION IC FOR VCR
The TL8857F is the skew correction IC for the search
playback signal of NTSC SP mode by 4 head PAL cylinder.
This skew is made by the difference of 1H length on tape
between NTSC (525 lines) and PAL (625 lines)
PAL : 625 lines=2H
NTSC : 525 |ines=(2/625)x525=1.68H
Difference (Skew) = 2H -1.68H = 0.32H
TL8857F corrects the skew by changing the delay time of
CCD delay lines.
FEATURES
CCD DELAY LINES
NTSC 0.32H/0H DELAY LINES (Apply to both 3.58NTSC
and 4.43NTSC)
SYNC TIP CLAMP CIRCUIT
CCD DRIVE CIRCUIT, SAMPLE AND HOLD CIRCUIT
2 input SW (For the through mode)
2 input SW is controlled by Pin 13
Low=Through (EE) mode
High =Skew (correction) mode
SOP16-P-300-1.27
Weight : 0.29 (Typ.)
When Pin 13 is Low the CCD clock driver is off and the CCD output (Pin 8) is fixed to DC
980508EBAI
OTOSHIBA 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 sdecified
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.
OThe products described in this document are subject to foreign exchange and foreign trade laws.
OThe information contained herein is presented only as a guide for the applications of our products. No responsibility
is assumed by TOSHIBA CORPORATION for any infringements of intellectual propert or other rights of the third
parties which may result from its use. No license is granted by implication or ot erwise under any intellectual
property or other rights of TOSHIBA CORPORATION or others.
OThe information contained herein is subject to change without notice.
1998-11-20 1/13
TOSHIBA TL8857F
o The CCD delay time is 2 mode. 0H and 0.32H, controlled by Pin 14.
Low=0H
High =0.32H
o PLL frequency multiplier is built in. 3.58NTSC and 4.43NTSC are selected by Pin 15.
Low = 4.43 NTSC
High = 3.58NTSC
. Input signal is sampling by 4 times (3.58NTSC) or 3 times (4.43NTSC) of subcarrier frequency,
generated by internal PLL multiplier.
0 5V single power supply.
0 As all supporting circuit for CCD such as CCD driver, bias generators and output amplifiers are built
in, minimum external parts are needed.
0 The output signal at pin8 is inverted.
1998-11-20 2/13
1998-11-20 3/13
BLOCK DIAGRAM
VIDEO SIGNAL IN
TL8857F - 3
EE = Low
100‘uF
+= _ V E
CCDout
0.47;»=
feedback
3/ — +
Limiter - j
"EE" = STOP CCD CLOCK
10 750 Driver 0
vout Vout
CLOCK IN
ooze sT)'ro'i
S/F : SOURCE FOLLOWER
S/H: SAMPLE HOLD
(Note) Delayed 0.5bit via two S/H
TOSHIBA
TL8857F
TOSHIBA TL8857F
PIN LIST
PLL-FIL t 1 V 16 [ICKIN
VSS1 t 2 15 Tsvve 4.43I 3.58
VDD1 t 3 14 EISW2 W
V002 I] 4 13 Tsw, EE I CCD(Skew)
VSS2 t 5 12 [ICCDIN
VGG t 6 11 CIV1N2
V00 t 7 10 [IVOUT
CCDOUT t 8 9 ElV1N1
MAXIMUM RATINGS (Ta=25°C)
CHARACTERISTIC SYMBOL RATING UNIT
Supply Voltage VDD 6 V
Input Voltage VIN -th3--VDD+0.3 V
Power Dissipation tote 1) 300 mW
. Topr o
Operating Temperature (Note 2) 0 60 C
Storage Temperature Tstg -55--150 "C
(Note 1) Ta =60°C
(Note 2) Frost isn't to stick to the condition.
ELECTRICAL CHARACTERISTICS
DC CHARACTERISTIC (Ta =25°C, VDD=5.0V)
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Operating Supply
Voltage VDD - 4.75 5.0 5.25 V
Supply Current IDD - 8.0 13.0 18.0 mA
CCD 3.0 3.6 4.2
Output DC Level out - SKEW, 3.5-8NTSC mode
VOUT Vin = No signal 1.5 2.0 2.5
CCDin CLOCK=3.579545MH2 2.5 2.9 3.3
1/IN1 300mvp-p 0.4 0.8 1.2
VIN2 Pin 13, 14, 15="Hi" 0.4 0.8 1.2
Pin DC Level v03 =5V DC Input 0.9 1.5 2.1
PLL-FIL 0.5 1.5 2.5
CLOCK IN 1.3 2.3 3.3 V
VGG - 8.0 10.0 12.0
SWIIL - - 1.5
SW1IH 3.5 - -
Switch Input Select SW2IL - - - 1.5
Level Pin Voltage SWZIH 3.5 - -
Sill/mt. - - 1.5
SW3IH 3.5 - -
1998-11-20 4/13
TOSHIBA TL8857F
ELECTRICAL CHARACTERISTICS (3.58NTSC mode, CCD part)
AC CHARACTERISTIC
(Ta=25°C, vDD=5.ov, clock=3.579545MHz, Om/p-p, 52:2, 53:2, 54:1, 55:1, 58: 1)
SYM- TEST
CHARACTERISTIC CIR- TEST CONDITION MIN. TYP. MAX. UNIT
BOL CUIT
Input Level VIN 1 - - 1.0 1.2 Vp-p
51:1, 57:2, 59:1,
Gul S10=1, 511:2 S5--2(0H) 0 2.0 4.0
Voltage Gain 1 V|N=15.625kHz, dB
Gu2 0-5Vp-p S5=1(0.32H) o 2.0 4.0
(Fig.2-b)
51:1, 57:2, 59:1,
611 S10--1,S11--2 S5=2(OH) -3 -2 -
Frequency Characteristic 1 1hN=15.625kHz/ dB
Gf2 4.5MHz, 0-5Vp-p 55=1 (0.32H) -3 -2 -
(Fig.2-b)
51:1, 57:1, 59:1,
DGI 510:1, 511:3 S5=2(0H) - 5 7
Differential Gain 1 VIN=5 step signal, %
DG2 1-0Vp-p 55:1 (0.32H) - 5 7
Y=140IRE =1.ovp_p,
C=40IRE
DPI (Fig.3) 55:2 (0H) - 5 7
Differential Phase 1 DG = (COmax-COmin) deg
DP2 /COmin ss =1 (0.32H) - 5 7
(Fig.5)
L 1 S/Y (0H) 37 40 43
sl S1=1,S7=1,S9=1, 2 55:1
37 40 43
. . S10 =2, 511:1 (0.32H)
Linearity . %
1htu--5 step signal, 55:2 56 60 64
1.ovp_p (Fig.2-a, Fig.4) (OH)
l-y1 1 Y1/Y2 55-1
(0.32H) 56 60 64
S1=1,S7=2,S10=1,S11=1 55:2
1hN=15.625kHz, 0.6vp_p (OH) 100 250 400
Output Impedance 201 1 (Fig.2-b) n
2o =(V1-V2)/V2 x1000 55:1 100 250 400
VI : 59:1, v2 : 59:2 (0.32H)
Clock Input Level Vck 1 - 0.2 0.3 0.7 Vp-p
- - - - 55:2
Clock Leak Lck SI=2, S7=I, S9=I, S10= I, (0H) 20 40
1 S11 =2 mVrms
(4fsc) 14.3 V =No Si nal 55:1 20 40
IN-- g (0.32H) -
S1=2.Sv=1.Sa=1.S =1 S5--2 1 2
Clock Leak Lsc 1= ' 7= ' 9= ' 10= ' (0H)
1 S11 =2 mVrms
(fsc) 3.58 V =No si nal 55:1 1 2
IN-- g (0.32H)
1998-11-20 5/13
TOSHIBA TL8857F
ELECTRICAL CHARACTERISTIC (4.43NTSC mode, CCD part)
AC CHARACTERISTIC
(Ta = 25°C, VDD = 5.0V, clock = 4.43361875MH2, Om/p-p, Sit = 2, $3 = 2, s4 = 2, s6 = l, $8 = 1)
SYM- TEST
CHARACTERISTIC CIR- TEST CONDITION MIN. TYP. MAX. UNIT
BOL CUIT
Input Level VIN 1 - - 1.0 1.2 Vp-p
51:2, 57:2, 59:1,
Gu3 S10=1, 511:2 55:2(0H) 0 2.0 4.0
Voltage Gain 1 VIN =15.625kHz, dB
Gu4 0.61/p-p ss =1 (0.32H) o 2.0 4.0
(Fig.2-b)
51:2, Sy=2, S9=1,
Gf3 510:1,511=2 S5--2(0H) -3 -2 -
Frequency Characteristic 1 VIN =15.625kHz/ dB
Gf4 4.5MHz, 0-5Vp-p S5=1(0.32H) -3 -2 -
(Fig.2-b)
51:2, 57:1, 59:1,
DG3 S1o=1.511=3 55:2(0H) - 5 7
Differential Gain 1 V|N=5 step signal, %
DG4 1-0Vp-p s5 =1 (0.32H) - 5 7
Y=140IRE =1.ovp_p,
C =4OIRE
DP3 (Fig.3) 55:2 (0H) - 5 7
Differential Phase 1 DG = (COmax - COmin) deg
DP4 /C0min S5 =1 (0.32H) - 5 7
(Fig.5)
'i'if 37 40 43
L52 1 S1--2,S7--1,S9--1, S/Y2 s =1
s1o=2,s11=1 5" 37 40 43
. . . (0.32H)
Linearity VIN = 5 step signal, S =2 %
1.ovp_p (53;) 56 60 64
Ly2 1 (Fig.2-a, Fig.4) Y1/Y2 S5 =1
(0.32H) 56 60 64
51:2, 57:2, 510:1,511=1 55:2
VIN =15.625kHz, 0.61/p-p (OH) 100 250 400
Output Impedance 202 1 (Fig.2-b) n
Zo=(V1-V2)/V2><1000 55:1 100 250 400
VI : 59:1, 1/2 : 59:2 (0.32H)
Clock Input Level Vck 1 - 0.2 0.3 0.7 Vp-p
S5 = 2
Clock Leak Lck SI-- il, S7 - 2, S9 =1, S10 =1, (0H) - 20 40
1 $11 = 2 mVrms
(3fsc) 13.3 v =No si nal 55:1 20 40
IN - g (0.32H) -
s-2s =2.Sa=1 s =1 S5--2 1 2
Clock Leak Lsc 1= ' 7= ' 9= ' 10= ' (0H)
1 $11 = 2 ml/rms
(fsc) 4.43 V - No si nal S5 =1 1 2
IN - g (0.32H)
1998-11-20 6/13
TOSHIBA
TL8857F
ELECTRICAL CHARACTERISTIC Commonness (SW part)
AC CHARACTERISTIC (Ta =25°C, VDD=5.OV, clock=3.579545MHz or 4.43361875MH2, Om/p-p, S1 --2,
54:1 or 2, 55:1 or 2, 53:2, 510:1)
- TEST
CHARACTERISTIC SYM CIR- TEST CONDITION MIN. TYP. MAX. UNIT
BOL CUIT
Input Level VIN 1 - - 2.0 2.4 Vp-p
S7--2,S9--1, s =2 s =1 s =2
6= ' 2= ' 3= - -
Through Mode Voltage Gu5 511:2 (Pin11-aPin10) 1.5 0.5 0.5
G . 1 V|N=15.625kHz, dB
am G 6 1-2Vp-p S5.=1' 52.=2’ 53:1 -1.5 -0.5 0.5
V (Fig.6-b) (Pin 9-apin 10)
S7=2,S9=1, s =2 s =1 s =2
6= I 2= I 3= -
Through Mode fth1 S11=2 (Pin 11-9Pin 10) 1.0 0 1.0
Frequency Characteristic 1 1hN=15.625kHz/ dB
fth2 4.5MHz, 1-2Vp-p 55:1, 5252' 53:1 -1.0 o 1.0
(Fig.6-b) (Pin 9-oPin 10)
S7 = I, $9 = 1, S -
6--2,S2--1,S3=2 -
D65 511:3 (Pin II-spin 10) 3 5
Differential Gain 1 V|N=5 step %
signal, 2.0Vp-p S6 =1, Sit = 2, $3 =1
DG6 Y=140IRE = (Pin 9-oPin 10) - 3 5
1.01/p-p, C=40|RE
(Fig.7) S6--2, $2: 1, 83:2 -
DPS DG = (COmax- (Pin II-spin 10) 3 5
Differential Phase 1 COmin)/ deg
DP6 COmin 55:1' la. =2, 53:1 - 3 5
(Fig.5) (Pin 9-apin 10)
55:2, 52:1, 53:2
L 1 '17:1'. S/ (Pin 11-9Pin 10) 37 40 43 o/
s3 9= ' - - - "
s11=1 Y2 5571' 5272' S3=1 37 40 43
. . (Pin 9-apin 10)
Linearity VIN=5 step S6=2 S2=1 53-2
. l, - ' . ' -
s'gna Y1 (Pin 11-ypin 10) 56 60 64
L 1 2.0V - / %
y3 . p-p . S6=1,S2=2,S3=1
(Fig.6-a, Fig.4) Y2 (Pin 9-oPin 10) 56 60 64
S7 = 2, 511:1
VIN =15.625kHZ, $6 = 2, S2 = l, S3 = 2
1.21/p-p (Pin 11-apin 10) oo so 00
(Fig.6-b)
Out ut lm edance 2 1 n
p p 0 20=(1/1 -1/2)/
V2x1000 S6=1, 52:2, 53:1
V1 : S9 = 1, (Pin 9-oPin 10) 100 250 400
V2 : 59:2
1998-11-20 7/13
TOSHIBA
TEST CIRCUIT
$4 ss S6
4.43 0H EE
qt + + '
TL8857F
0.32H SKEW
106k0 S74
0.47/JF
driver
OSCILLOSCOPE
Spectrum
Analyzer
VECTOR
1998-11-20 8/13
TOSHIBA TL8857F
INPUT SIGNAL DC LEVEL
(a) 5 step staircase signal (b)Sine wave input
(Clamp Operation)
1 0vp p
o.csvp_p
(4OIRE)
.Wl._.-.-.-.l.-.-.-.-._ Clam p Voltage
5 STEP STAIRCASE SIGNAL
Chroma 4.43MHZ (40IRE)
3.58NHZ (40lRE)
1 (100IRE)
l I _l l l (40lRE)
1 .ovp_p
I 63.5prs I
LINEARITY TEST SIGNAL OUTPUT CHROMA DIFFERENTIAL GAIN
Fig.4 Fig.5
1998-11-20 9/13
TOSHIBA TL8857F
INPUT SIGNAL DC LEVEL
(a) 5 step staircase signal (b)Sine wave input
(Clamp operation)
(4OIRE)
.-F-.-.l-.-.-.-.-.l-.-.-F-F- Clamp DC
5 STEP STAIRCASE SIGNAL
Chroma 4.43MHZ (40IRE)
3.58NHz (40lRE)
1 (100lRE)
l l' l l (4OIRE)
2 .ovp,_p
I 63.5;15 I
1998-11-20 10/13
TOSHIBA TL8857F
APPLICATION CIRCUIT
OV ---------------
f Video IN C w
EEICCD (Skew)
0H|0.32H
4.43'358
292blt + 3bit
270b|t + 3blt
driver --
vss(D) VDD(D) VDD(A) VSS(A)
Cl LL + t 9V
2 t 5 I l; a
co u. o o 1:44
us' . '-
-- - - C}
5V Im/p-p-l-sup-p -
1998-11-20 11/13
TOSHIBA TL8857F
ATTENTION IN TREATMENT
This device is electrostatic sensitive device, so care must be taken in handling and storage to prevent
deterioration or damage by means of shorting electrically all pins with use of aluminum foil or
conductive mat.
Even in assembled on board, it is necessary to protect against surge or inductive noise from input,
output and power supply line.
1998-11-20 12/13
TOSHIBA TL8857F
OUTLINE DRAWING
SOP16-P-300-1.27 Unit : mm
'ilaFiflliHrlc"
N t'0. 7;
_ilirl,ri,leilj--v-
0.705TYP " ' 0.43:0.1 Ms 1
_ I‘ ' “I A
v, 10,8MAX t
L 10.3102 "
, .1 rl
' 1 .9MAX
E!!! if
c; - 0.8:t0.2
Weight : 0.2g (Typ.)
1998-11-20 13/13
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