LC89975M View Datasheet(PDF) - SANYO -> Panasonic
Part Name
Description
Manufacturer
LC89975M Datasheet PDF : 7 Pages
| |||
LC89975M
Test Conditions
1. Power-supply current with no input signal applied
2. Pin output voltage with no input signal applied (center bias voltage)
3. Measure the C-OUT output when 350-mVp-p sine wave signals are input to C-IN1 and C-IN2.
GVC
=
20
log
C-OUT output [mVp-p]
350 [mVp-p]
[dB]
Measured frequencies
GVC-1
GVC-2
4.429662 MHz
4.425694 MHz
(PAL/GBI)
(4.43 NTSC)
4. Measure the comb depth from the C-OUT output when 350-mVp-p sine wave signals of frequency fa are input to C-
IN1 and C-IN2 and when signals of frequency fb are input.
CD = 20 log
The C-OUT output for an fb input [mVp-p]
The C-OUT output for an fa input [mVp-p]
[dB]
Measured frequencies
CD-1
CD-2
fa
4.429662 MHz
4.425694 MHz
fb
4.425756 MHz
4.417819 MHz
(PAL/GBI)
(4.43 NTSC)
5. Measure the C-OUT output when 200-mVp-p sine wave signals are input to C-IN1 and C-IN2 and when 500-mVp-p
sine wave signals are input and calculate the gain difference.
( ) LNC = 20 log
Output
for
a
500-mVp-p input
500 [mVp-p]
[mVp-p]
/
Output
for
a
200-mVp-p input
200 [mVp-p]
[mVp-p]
[dB]
Measured frequencies
LNC-1
LNC-2
4.429662 MHz
4.425694 MHz
(PAL/GBI)
(4.43 NTSC)
6. Measure the 3·fsc (13.3 MHz) and fsc (4.43 MHz) components in the C-OUT output with no input signal applied.
7. Measure the noise in the C-OUT output with no input signal applied.
Set up the noise meter with a 200-kHz high-pass filter and a 5-MHz low-pass filter.
8. Let V1 be the C-OUT output when 350-mVp-p sine wave signals are input to C-IN1 and C-IN2 with SW3 in the a
position, and V2 be the C-OUT output with SW3 in the b position.
ZOC =
V2 [mVp-p] – V1 [mVp-p]
V1 [mVp-p]
× 500 [Ω]
Measured frequencies
ZOC-1
ZOC-2
4.429662 MHz
4.425694 MHz
(PAL/GBI)
(4.43 NTSC)
No. 5391-5/7
Share Link: 