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PDF NJM2540 Data sheet ( Hoja de datos )
| Número de pieza | NJM2540 | |
| Descripción | (NJM2540 / NJM2543) 5.0V / SSOP16 | |
| Fabricantes | JRC | |
| Logotipo |  |
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NJM2540/2543
www.DataSheet4U.com
Mixer and Oscillator for TV Tuner
DESCRIPTION
The NJM2540/43 are mixer/oscillator especially designed for TV
tuners and consists of mixers, oscillators, IF amplifier and OSC buffer
for VHF,UHF and CATV band, built into one chip.
The NJM2540/43 packaging in SSOP16 are suitable for small-sized
tuners.
The NJM2543 is the reverse pin assignment type of the NJM2540.
FEATURES
• Operating Voltage 5V
• Mixers, Oscillators, IF AMP and OSC buffer on chip
• Bipolar Technology
• Package Outline: SSOP16
PACKAGE OUTLINE
NJM2540V/NJM2543V
BLOCK DIAGRAM
(1) (2) (3) (4) (5) (6) (7) (8)
16 15 14 13
12 11 10
9
UHF MIX
VHF MIX
IF AMP
U/V
SW
VHF OSC
UHF OSC
OSC BUFF
12 34 5 67
(16) (15) (14) (13) (12) (11) (10)
8
(9)
(Note)
Pin numbers in circle are for NJM2540
Pin numbers in parenthesis are for NJM2543
-1-
1 page  
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TERMINAL CHARACTERISTICS
No.
Symbol
Typ.DC
Voltage (V)
1
(16)
VHFOSC1
VHF
2.9
2
(15)
VHFOSC2
VHF
2.2
3
(14)
VOSC
-
4
(13)
UHFOSC1
UHF
2.1
5
(12)
UHFOSC2
UHF
2.9
6
(11)
GND
-
7
(10)
OSCOUT
3.7
Equivalent Circuit
3
1
2
3
5
4
7
8
(9)
U/V SW
-
8
NJM2540/2543
Function
VHF
Oscillator
Oscillator
Power Supply
UHF
Oscillator
GND
OSC Output
UHF/VHF
Select Switch
UHF at Vcc
VHF at GND
9
(8)
IFOUT
2.2
9 IF Output
-5-
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet NJM2540.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| NJM2540 | (NJM2540 / NJM2543) 5.0V / SSOP16 | JRC |
| NJM2542 | 5V / SSOP20 | JRC |
| NJM2543 | (NJM2540 / NJM2543) 5.0V / SSOP16 | JRC |
| NJM2549 | WIDE BAND FM IF DEMODULATOR |  New Japan Radio |
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