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PDF UPC1862 Data sheet ( Hoja de datos )
| Número de pieza | UPC1862 | |
| Descripción | BURST LOCK CLOCK GENERATOR | |
| Fabricantes | NEC | |
| Logotipo |  |
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DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µPC1862
BURST LOCK CLOCK GENERATOR
The µPC1862 is an LSI incorporating a PLL circuit to generate nfSC clocks (fSC: color subcarrier frequency), ideal
for the processing of digital video signals as in extended definition television (EDTV) systems.
FEATURES
• VCO is incorporated.
• Horizontal and vertical sync separation circuits are incorporated (with output pins).
• Horizontal and vertical sync output pulses (TTL level)
• ACC amplifier and killer detector circuits are incorporated.
• 1/4 and 1/8 (1/2 × 1/4) frequency dividers are incorporated.
• fSC phase control circuits is incorporated.
• Applicable to both NTSC and PAL systems.
• Possible to input burst gate pulse from external
ORDERING INFORMATION
Part number
µPC1862GS
Package
36-pin plastic shrink SOP (300 mil)
The information in this document is subject to change without notice.
Document No. S11431EJ3V0DS00 (3rd edition)
Date Published December 1997 N CP(K)
Printed in Japan
The mark shows major revised points.
©
1991, 1996
1 page  
ACCF
: Chroma ACC Filter
AFCF
: Horizontal Sync AFC Filter
APCF
: Chroma APC Filter
BGPE
: Burst Gate Pulse from External
CGND
: Chroma GND
CIN : Chroma Input
CKF
: Color Killer Filter
CKO
: Color Killer Output
COUT
: Chroma Output
CPO
: Clamp Pulse Output
CSO
: Composite Sync Output
CVCC1-CVCC3
: Chroma VCC
DIVS
: Divider Setting Input
ESCI
: External Subcarrier Input
FIO : Field ID Output
HDF
: Horizontal Sync Detect Filter
HDO
: Horizontal Sync Detect Output
HKO
: Horizontal Sync Killer Output
HSOF1-HSOF3 : 32fH VCO Filter
NHSO
: Negative Horizontal Sync Output
N/P : NTSC/PAL Mode Select
SCO
: Subcarrier Output
SCOF1-SCOF3 : fSC VCO Filter
SGND
: Sync GND
SSI : Horizontal Sync Separation Input
SVCC
: Sync VCC
TINT
: Tint Control
VCOO
: VCO Output
VSO
: Vertical Sync Output
VSSI
: Vertical Sync Separation Input
µPC1862
5
5 Page 
Pin No. Symbol
16 VCOO
Pin Name
VCO Output
µPC1862
Equivalent Circuit
CVCC2
(pin 14)
(6/12)
Function
Burst locked VCO output
5 kΩ
400 µA
16
17 DIVS
Dividing ratio selec-
tion
DC voltage of a standard 2.8 V
100 µA
25 kΩ
100 µA
CVCC3 Divider ratio selection input
(pin 15) When 1/4: Low level input
When 1/8: High level input
When external dividing: Middle
level input
18 ESCI
10 kΩ
25 kΩ
16 kΩ
16 kΩ
16 kΩ
16 kΩ
External subcarrier
Input
(External Divide)
17
100 µA
25 kΩ
5 kΩ
18
CVCC3
(pin 15)
2.5 V
External subcarrier input.
When no use (pin 17 is not middle
level): Low level input
22 kΩ
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet UPC1862.PDF ] | |
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