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參數資料
| 型號： | LA71521M |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP80 |
| 封裝： | QFP-80 |
| 文件頁數： | 20/25頁 |
| 文件大小： | 325K |
| 代理商： | LA71521M |
LA71521M
No. 5842-4/25
Continued on next page
Continued from preceding page
VIN = 300 mVp-p f = 4 MHz
Ratio of T25 4 MHz component and SDEM
Ratio of 3 fH component and
32.5 fH component with
VIN = white 50% + CW
(15.8 mVp-p)
Input/output response measured with
VIN = white 50% video + sine wave f = 2 MHz 158 mVp-p
00 OFF
10 (weak)
01 (medium)
11 (strong)
T38 video output sync tip (LSYN), pedestal (LPED), white
level (LWHT) potential measured with VIN = white 100%
0.5 Vp-p
DC voltage at T38 is measured when 5V is applied to
T33. Taking this as LVDP, differential with LSYN above
is calculated.
DC voltage at T38 is measured when 2.7V is applied to
T33. Taking this as LHDP, differential with LPED above is
calculated.
DC voltage at T38 is measured when 1.3V is applied to
T33. Taking this as LWHP, differential with LWHT above is
calculated.
Pin 37 output pulse crest value measured with
VIN = 0.5 Vp-p video signal
Pin 37 output pulse width measured with
VIN = 0.5 Vp-p video signal
Delay of output SYNC vs. input SYNC measured with
VIN = 0.5 Vp-p video signal
Pin 17 signal amplitude measured with
VIN = 150, 300, 600 mVp-p 4 MHz CW
LDEM
CL
GNLDE1
PYNR
GWNC1
GWNC4
GWNC3
GWNC2
GWNC5
GPH1
GPH2
GPH3
LVOR
VDP
HDP
WHP
PWSYP
T
SYP
GPH4
VFAGC
VSYP
GNLDE2
Serial
VREG
LDEM =
VDEM
4 – (V
DEM
2 +V
DEM
6 ) /2
VDEM
6 –V
DEM
2
x 100
min
typ
max
FM demodulator linearity
T15
T25
–3.5
0
%
Carrier leak
T15
T25
–35
dB
Playback YNR characteristics
T26A
T38
000
–3.7
–3.2
–2.7
–9.2
–8.2
–7.2
–13.3
–11.8
–10.3
Nonlinear
T26A
T38
–3.5
–2.5
–1.5
dB
deemphasis characteristics 1
Nonlinear
T26A
T38
f = 2 MHz, 50 mVp-p
4.5
6.0
7.5
deemphasis characteristics 2
22.5
4.0
5.5
30.5
2.0
3.5
4
0
Double noise
T26A
T38
f = 1.2 MHz, 158 mVp-p, pin 69 open
–3
–2
–1dB
canceler characteristics 1
Gr2 bit 8/7 = "10", Gr5 bit 1 = "0"
Double noise
T26A
T38
f = 1.2 MHz, 50 mVp-p, pin 69 open
–7.5
–6.0
–4.5
dB
canceler characteristics 2
Gr2 bit 8/7 = "10", Gr5 bit 1 = "0"
Double noise
T26A
T38
f = 1.2 MHz, 15.8 mVp-p, pin 69 open
–14
–12
–10
dB
canceler characteristics 3
Gr2 bit 8/7 = "10", Gr5 bit 1 = "0"
Double noise
T26A
T38
f = 2.5 MHz, 15.8 mVp-p, pin 69 open
–6
–5
–4dB
canceler characteristics 4
Gr2 bit 8/7 = "10", Gr5 bit 1 = "0"
Double noise
T26A
T38
f = 2.5 MHz, 15.8 mVp-p, pin 69 open
–9.5
–8.0
–6.5
dB
canceler characteristics 5
Gr2 bit 8/7 = "10", Gr5 bit 1 = "0"
PIC-CTL hard response
T26A
T38
f = 1 MHz, 158 mVp-p, Gr5 bit 6/5/4 = "1/0/0"
2.5
3.5
4.5
dB
characteristics 1
PIC-CTL hard response
T26A
T38
f = 2 MHz, 158 mVp-p, Gr5 bit 6/5/4 = "1/0/0"
6
7
8
dB
characteristics 2
PIC-CTL soft response
T26A
T38
f = 1 MHz, 158 mVp-p, Gr5 bit 6/5/4 = "0/0/0"
–4.5
–3.5
–2.5
dB
characteristics 1
PIC-CTL soft response
T26A
T38
f = 2 MHz, 158 mVp-p, Gr5 bit 6/5/4 = "0/0/0"
–8
–7
–6dB
characteristics 2
Sync tip level
T26A
T38
700
800
900
mV
Pedestal level
White level measurement
Simulated V insertion level
T26A
T38
–50
0
mV
Simulated H insertion level
T26A
T38
–100
0
mV
White insertion level
T26A
T38
–100
0
mV
Sync separation output level
T26A
T37
4.0
4.2
4.4
Vp-p
Sync separation output pulse
T26A
T37
4.35
4.65
4.95
s
width
Sync separation output
T26A
T37
0.7
0.9
1.10
s
Pre-delay time
4V regulator
T31
T31 DC level measured
3.8
4.0
4.2
V
FMAGC output level
T15
T17
325
350
375 mVp-p
dB
+50
dB
+3.5
+100
CTL 1
Parameter
Symbol
Input
Output
Conditions
Ratings
Unit
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