M52334FP Datasheet, PDF (1/12 Pages) Mitsubishi Electric Semiconductor – PLL-SPLIT VIF/SIF IC

MITSUBISHI ICs (TV)
M52334FP
PLL-SPLIT VIF/SIF IC
DESCRIPTION
The M52334FP is IF signal-processing IC for VCRs and TVs. It
enable the PLL detection system despite size as small as that of
conventional quasi-synchronous VIF/SIF detector, IF/RF AGC, SIF
limiter and FM detector.
FEATURES
• Video detection output is 2VP-P. It has built-in EQ AMP.
• The package is a 20-pin flat package, suitable for space saving.
• The video detector uses PLL for full synchronous detection
circuit. It produces excellent characteristics of DG, DP, 920kHz
beat, and cross color.
• Dynamic AGC realizes high speed response with only single
filter.
• Video IF and sound IF signal processings are separated from
each other. VCO output is used to obtain intercarrier.
• As AFT output voltage uses the APC output voltage, VCO coil is
not used.
• Audio FM demodulation uses PLL system, so it has wide
frequency range with no external parts and no adjustment.
• This IC corresponds to only inter of NTSC system.
APPLICATION
TV sets, VCR tuners
RECOMMENDED OPERATING CONDITION
In case of VCC and Vreg. out short
Supply voltage range....................................................4.75 to 5.25V
Recommended supply voltage...................................................5.0V
Incase of Vreg. out open
Supply voltage range......................................................8.5 to 12.5V
PIN CONFIGURATION (TOP VIEW)
EQ OUT 1
APC FILTER 2
EQ IN 3
Vreg. OUT 4
VCO COIL 5
VCO COIL 6
VCC 7
VIDEO OUT 8
SIF GND 9
LIMITER IN 10
20 EQ F/B
19 AFT OUT
18 RF AGC DELAY
17 VIF IN
16 VIF IN
15 GND
14 RF AGC OUT
13 IF AGC FILTER
12 NFB
11 AUDIO OUT
Outline 20P2N-A
BLOCK DIAGRAM
RF AGC DELAY
EQ F/B AFT OUT
VIF IN
20
19
18
17
VIF IN
16
IF AGC FILTER
GND RF AGC OUT
NFB AUDIO OUT
15
14
13
12
11
VIF AMP
RF AGC
IF AGC
AF AMP
EQ
AMP
AFT
VIDEO
DET
APC
FM DET
VCO
Vcc REG
LIM AMP
1
2
3
4
5
6
7
8
9
10
EQ OUT
EQ IN
VCO COIL
VCC
SIF GND
APC FILTER
Vreg. OUT
VCO COIL
VIDEO OUT
LIMITER IN
1