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Número de pieza | TDA5744TS | |
Descripción | Low power mixers/oscillators for hyperband tuners | |
Fabricantes | NXP Semiconductors | |
Logotipo | ||
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No Preview Available ! INTEGRATED CIRCUITS
DATA SHEET
TDA5744; TDA5745
Low power mixers/oscillators for
hyperband tuners
Preliminary specification
File under Integrated Circuits, IC02
1998 Mar 09
1 page Philips Semiconductors
Low power mixers/oscillators for
hyperband tuners
Preliminary specification
TDA5744; TDA5745
handbook, halfpage
UHFIN1 1
24 VHFOSCIB2
UHFIN2 2
23 VHFOSCOC2
VHFIN 3
22 VHFOSCOC1
RFGND 4
21 VHFOSCIB1
IFFIL1 5
20 UHFOSCIB2
IFFIL2 6
19 UHFOSCOC2
TDA5744TS
n.c. 7
18 UHFOSCOC1
n.c. 8
17 UHFOSCIB1
BS 9
16 GND
n.c. 10
15 IFOUT2
n.c. 11
14 IFOUT1
n.c. 12
13 VCC
MGM464
Fig.2 Pin configuration for TDA5744TS.
handbook, halfpage
VHFOSCIB2 1
24 UHFIN1
VHFOSCOC2 2
23 UHFIN2
VHFOSCOC1 3
22 VHFIN
VHFOSCIB1 4
21 RFGND
UHFOSCIB2 5
20 IFFIL1
UHFOSCOC2 6
19 IFFIL2
TDA5745TS
UHFOSCOC1 7
18 n.c.
UHFOSCIB1 8
17 n.c.
GND 9
16 BS
IFOUT2 10
15 n.c.
IFOUT1 11
14 n.c.
VCC 12
13 n.c.
MGM465
Fig.3 Pin configuration for TDA5745TS.
1998 Mar 09
5
5 Page Philips Semiconductors
Low power mixers/oscillators for
hyperband tuners
Preliminary specification
TDA5744; TDA5745
handbook, full pagewidth
BNC C1
L1
I1
PCB
plug
C2 RIM-RIM
(a)
I3
PCB
BNC C3
I2 plug
RIM-RIM
C4
(b)
MBE286 - 1
(a) For fRF = 50 MHz:
VHF mixer frequency response measured = 57 MHz;
loss = 0 dB.
Image suppression = 16 dB.
C1 = 1 nF; C2 = 2.2 pF.
L1 = 7 turns (∅ 5.5 mm; wire ∅ = 0.5 mm).
I1 = semi rigid cable (RIM): 5 cm long.
(semi rigid cable (RIM); 33 dB/100 m; 50 Ω; 96 pF/m).
(b) For fRF = 150 MHz:
VHF mixer frequency response measured = 150.3 MHz;
loss = 1.3 dB.
Image suppression = 13 dB.
C3 = 1 nF; C4 = 2.2 pF.
I2 = semi rigid cable (RIM): 30 cm long.
I3 = semi rigid cable (RIM): 5 cm long.
(semi rigid cable (RIM); 33 dB/100 m; 50 Ω; 96 pF/m).
Fig.8 Input circuit for optimum noise figure in the VHF band.
handbook, full pagewidth
NOISE
SOURCE
BNC
RIM
INPUT
CIRCUIT
VHFIN IFOUT1
D.U.T.
IFOUT2
T
C
NOISE
FIGURE
METER
MGL277
F = Fmeas − loss (of input circuit) (dB).
Fig.9 Noise figure (F) measurement in the VHF band.
1998 Mar 09
11
11 Page |
Páginas | Total 20 Páginas | |
PDF Descargar | [ Datasheet TDA5744TS.PDF ] |
Número de pieza | Descripción | Fabricantes |
TDA5744TS | Low power mixers/oscillators for hyperband tuners | NXP Semiconductors |
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