NTE1572 Ver la hoja de datos (PDF) - NTE Electronics
Número de pieza
componentes Descripción
Fabricante
NTE1572 Datasheet PDF : 5 Pages
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Notes (cont’d):
Note18. Output Impedance
(1) SIF IN: f = 4.5MHz, FM fMOD = 400Hz, ∆f = ±25kHz, 80dBµ.
(2) At P23 read the VO1 at RX = ∞, then read the RX when recovered output become
VO1/2 with varying the RX. The RX is the output impedance.
Note19. ATT MAX.
(1) SIF IN: f = 4.5MHz, FM fMOD = 400Hz, ∆f = ±25kHz, 80dBµ.
(2) Read the 400Hz component of VA1 at P2 with RA = 0, then read VA1’ with RA = ∞.
Note20. vPT
(1) SIF IN: f = 4.5MHz, FM fMOD = 400Hz, ∆f = ±25kHz, 80dBµ.
(2) Read the 400Hz component at P3.
Note21. GV AF
(1) Apply 400Hz 0.1Vrms signal to P2.
(2) Read the output voltage at P3.
Note22. Read the 400Hz component of VA1 at P2 with RA = 0. Set RA so that VA1’ = 1/2VA1 (–6dB),
then read DC voltage of Pin1 (V1).
Note23. Read the 400Hz component of VA1 at P2 with RA = 0. Set RA so that VA1’ = 3.16 x 10–3VA1
(–50dB), then read DC voltage of Pin1 (V1).
Pin Connection Diagram
Volume Control 1
NFB 2
Audio Output 3
Audio GND 4
IF AGC Filter/
VCR Switch
5
PIF Input 6
PIF Input 7
PIF Input 8
PIF Input 9
RF AGC Delay 10
RF AGC Output 11
PIF GND 12
24 SIF Detector
23 De–Emphasis
22 SIF Detector
21 SIF Input
20 VCC
19 AFT Tank
18 Video Tank
17 Video Tank
16 AFT Tank
15 Video Output
14 AFT Output 2
13 AFT Output 1
24
13
1
12
1.300 (33.02)
Max
.100 (2.54)
1.100 (27.94)
.225
(5.73)
Max
.520
(13.2)
.126
(3.22)
Min
.600
(15.24)
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