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Número de pieza | SA58643 | |
Descripción | Single Pole Double Throw Switch | |
Fabricantes | NXP Semiconductors | |
Logotipo | ||
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SA58643
Single-Pole Double-Throw (SPDT) switch
Rev. 01 — 20 November 2006
Product data sheet
1. General description
The SA58643 is a wideband RF switch fabricated in BiCMOS technology and
incorporating on-chip CMOS/TTL compatible drivers. Its primary function is to switch
signals in the frequency range DC to 1 GHz from one 50 Ω channel to another. The switch
is activated by a CMOS/TTL compatible signal applied to the enable channel 1 pin
(ENCH1).
The extremely low current consumption makes the SA58643 ideal for portable
applications. The excellent isolation and low loss makes this a suitable replacement for
PIN diodes.
The SA58643 is available in an 8-pin TSSOP package.
2. Features
I Wideband (DC to 1 GHz)
I Low through loss (1 dB typical at 200 MHz)
I Unused input is terminated internally in 50 Ω
I Excellent overload capability (1 dB gain compression point +18 dBm at 300 MHz)
I Low DC power (170 µA from 5 V supply)
I Fast switching (20 ns typical)
I Good isolation (off channel isolation 60 dB at 100 MHz)
I Low distortion (IP3 intercept +33 dBm)
I Good 50 Ω match (return loss 18 dB at 400 MHz)
I Full ESD protection
I Bidirectional operation
3. Applications
I Digital transceiver front-end switch
I Antenna switch
I Filter selection
I Video switch
I FSK transmitter
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NXP Semiconductors
12. Performance curves
SA58643
Single-Pole Double-Throw (SPDT) switch
200
IDD
(µA)
160
120
Tamb = +85 °C
80 +25 °C
−40 °C
40
0
3.0 4.0
002aab697
5.0 6.0
VDD (V)
Fig 4. Supply current versus VDD and temperature
−0.8
S21
(dB)
−1.2
002aab774
−1.6
VDD = 5 V
4V
3V
−2.0
10
102
f (MHz)
Tamb = +25 °C
Fig 6. Loss versus frequency and VDD
103
0
S21
(dB)
−2
−4
Tamb = +85 °C
+25 °C
−40 °C
−6
002aab700
0
S21
(dB)
−2
−4
VDD = 5 V
4V
3V
002aab698
−6
−8
10
102 103 104
f (MHz)
Tamb = +25 °C
Fig 5. Loss versus frequency and VDD
0
S21
(dB)
−2
002aab699
−4
CH2
−6
CH1
−8
10
102 103 104
f (MHz)
Tamb = +25 °C; VDD = 5 V
Fig 7. Loss matching versus frequency;
CH1 versus CH2
0
S21
(dB)
−20
−40
−60
VDD = 5 V
4V
3V
002aab701
−8
10
102 103 104
f (MHz)
−80
10
102 103 104
f (MHz)
VDD = 5 V
Fig 8. Loss versus frequency and temperature
Tamb = +25 °C
Fig 9. Isolation versus frequency and VDD
SA58643_1
Product data sheet
Rev. 01 — 20 November 2006
© NXP B.V. 2006. All rights reserved.
5 of 16
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NXP Semiconductors
SA58643
Single-Pole Double-Throw (SPDT) switch
14. Package outline
TSSOP8: plastic thin shrink small outline package; 8 leads; body width 3 mm
SOT505-1
D
y
Z
8
5
c
E AX
HE v M A
pin 1 index
1
e
4
bp
wM
A2 A1
(A3) A
Lp
L
detail X
θ
0 2.5 5 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A
max.
A1
A2
A3
bp
c
mm
1.1
0.15
0.05
0.95
0.80
0.25
0.45
0.25
0.28
0.15
D(1)
3.1
2.9
E(2) e
3.1
2.9
0.65
HE
5.1
4.7
Notes
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.
2. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
OUTLINE
VERSION
IEC
REFERENCES
JEDEC
JEITA
SOT505-1
L
0.94
Lp
0.7
0.4
v w y Z(1) θ
0.1
0.1
0.1
0.70
0.35
6°
0°
EUROPEAN
PROJECTION
ISSUE DATE
99-04-09
03-02-18
Fig 24. Package outline SOT505-1 (TSSOP8)
SA58643_1
Product data sheet
Rev. 01 — 20 November 2006
© NXP B.V. 2006. All rights reserved.
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11 Page |
Páginas | Total 16 Páginas | |
PDF Descargar | [ Datasheet SA58643.PDF ] |
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