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PDF LA72700V Data sheet ( Hoja de datos )
| Número de pieza | LA72700V | |
| Descripción | US MTS Decoder | |
| Fabricantes | Sanyo Electric | |
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Ordering number : ENA0015
LA72700V
Monolithic Linear IC
US MTS (Multi Channel
Television Sound) Decoder
Overview
LA72700V is a US MTS (Multi Channel Television Sound) decoder.
Features
• With SIF circuit, STEREO channel separation is alignment-free.
• Built-in filters are adjustment free.
• SAP output level is selectable 2 levels.
• Included control function for STEREO and SAP detection sensitivity.
Functions
• SIF FM-Demodulator.
• STEREO decoder.
• ALC function is included.
• dbx Noise Reduction system.
• SAP demodulator.
• STEREO detection.
• SAP detection.
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Maximum power supply voltage
Allowable power dissipation
VCC max
Pd max
Ta≤70°C *
Operating temperature
Topr
Storage temperature
Tstg
* ON board (114.3 × 76.1 × 1.6 mm Glass Epoxy resin board)
Conditions
Ratings
9.6
810
-10 to +70
-55 to +150
Unit
V
mW
°C
°C
O2505 MS OT B8-8873 No.A0015-1/16
1 page  
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LA72700V
00p-1 ( Normally use : group-1 only )
D8 D7 D6 D5 D4 D3 D2 D1
* 00
01
10
11
*0
1
*0
1
*0
1
*0
1
*0
1
*0
1
*: Initial condition
Condition
Stereo
SAP
Both
Prohibit
Normal (Auto det)
Forced Mono
Normal (MUTE off)
MUTE
ALC off (Through)
ALC on
SAP LEVEL-1
SAP LEVEL-2
SIF mode
Base Band mode
Fix
Prohibit (TEST MODE)
Read out data
D8 D7 D6 D5 D4 D3 D2 D1
00 0 000
0
1
0
1
Condition
Fixed
Normal
SAP det
Normal
Stereo det
Test mode condition
When STOP condition transform at Grp-1 data-end, controlled NORMAL mode.
Grp-2(Only test condition: Normally, this data is no-need)
D8 D7 D6 D5 D4 D3 D2 D1
0 0 0 0 0 0 00
0 0 0 0 0 0 01
0 0 0 0 0 0 10
0 0 0 0 0 0 11
0 0 0 0 0 1 00
0 0 0 0 0 1 01
0 0 0 0 0 1 10
0 0 0 0 0 1 11
0 0 0 0 1 0 00
0 0 0 0 1 0 01
0 0 0 0 1 0 10
0 0 0 0 1 0 11
0 0 0 0 1 1 00
0 0 0 0 1 1 01
0 0 0 0 1 1 10
0 0 0 0 1 1 11
Condition/Monitor position
Normal (Usually, Fixed)
TEST-1 SIF output
TEST-2 SAP BPF
TEST-3 SAP VCO
TEST-4 ST VCO
TEST-5 ADJ VCO
TEST-6 dbx input
TEST-7 L-R Demod output
TEST-8 Pilot cancel
TEST-9 dbx 2.19k LPF
TEST-10 dbx 408 LPF
TEST-11 dbx DET 10k LPF
TEST-12 dbx SPEC 7.6k LPF
TEST-13 dbx SPEC output
TEST-14 (No operation)
TEST-15 (No operation)
No.A0015-5/16
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Continued from preceding page.
No. Pin function
DC voltage
AC level
28 PMAIN_IN
DC: 3.5V
AC: 220mVp-p
LA72700V
Input/output form
Reference
AC coupling (Input)
29 PMAINOUT
DC: 3.8V
AC: 220mVp-p
AC coupling (Output)
30 PCREG76
DC: 1.2V
Regulator
31 VCC
32 POLED
DC*
* See Mode
table
33 PICLKFSC
DC: 0V
AC*
* 200mVp-p
Recommend
Mode out
MONO = 0.9V
SAP = 2.0V
STEREO = 3.0V
STEREO+SAP = 3.8V
Fsc input
3.579545MHz, 200mVp-p
Continued on next page.
No.A0015-11/16
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet LA72700V.PDF ] | |
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