ALPHA SMP1307-004

Very Low Distortion Attenuator
Plastic Packaged PIN Diodes
SMP1307 Series
Features
■ Low Distortion Design
■ Frequency Range from HF to > 2 GHz
■ Designed for CATV AGC Applications
■ Designed for High Volume Wireless
Applications
Description
The SMP1307 series of plastic packaged, surface
mountable, low capacitance (0.3 pF) silicon PIN diodes
are designed for use in attenuator applications from 5 MHz
to beyond 2 GHz. The thick 175 µm I region of these PIN
diodes makes them very attractive for use in very low
distortion PI and TEE attenuators commonly used in TV
distribution applications. The 1.5 µS typical carrier
lifetime of these diodes results in resistance of 100 Ω
maximum at 1 mA and 10 Ω maximum at 10 mA. Available
in a selection of plastic packages, as a single diode in the
small footprint SOD-323, and in a variety of configurations
in the SOT-23. Also available in a SOT-5 (SMP1307-027)
package as a four diode array designed for insertion in the
commonly used 4 diode PI attenuator circuit.
Absolute Maximum Ratings
Characteristic
Value
Reverse Voltage (VR)
200 V
Power Dissipation @ 25°C Lead
Temperature (PD)
250 mW
Storage Temperature (TST)
-65°C to +150°C
Operating Temperature (TOP)
-65°C to +150°C
ESD Human Body Model
Class 1C
Single
Common
Cathode
Series Pair
Single
PI
Marking: PJ1
Marking: PJ3
Marking: PJ2
SOT-23
SOT-23
SOT-23
SOD-323
SOT-5
♦ SMP1307-001
♦ SMP1307-004
♦ SMP1307-005
♦ SMP1307-011
♦ SMP1307-027
LS = 1.5 nH
LS = 1.5 nH
LS = 1.5 nH
LS = 1.5 nH
Marking: PJM
♦ Available through distribution.
Electrical Specifications at 25°C
Parameter
Condition
Typ.
Max.
Unit
10
µA
0.30
pF
100
Ω
F = 100 MHz, I = 10 mA
15
Ω
F = 100 MHz, I = 100 mA
3.0
Ω
Reverse Current (IR)
VR = 200 V
Capacitance (CT)
F = 1 MHz, V = 30 V
Resistance (RS)
Resistance (RS)
F = 100 MHz, I = 1 mA
Resistance (RS)
Forward Voltage (VF)
IF = 10 mA
0.85
V
Carrier Lifetime (TI)
IF = 10 mA
1.5
µS
175
µm
I Region Width
75
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com
Specifications subject to change without notice. 1/01A
1
Very Low Distortion Attenuator Plastic Packaged PIN Diodes
SMP1307 Series
Typical Performance Data
100
Forward Current (mA)
Series Resistance (Ω)
10000
1000
100
10
1
0.1
0.01
0.1
1
10
10
1
0.1
0.01
400
100
500
600
700
800
Forward Voltage (mV)
Series Resistance vs. Current @ 100 MHz
DC Characteristic
0.8
400
0.7
350
0.6
300
0.5
Conductance (µS)
Capacitance (pF)
Forward Current (mA)
1 MHZ
0.4
0.3
100 MHz
0.2
1 GHz
900
250
200
0V
150
10 V
100
40 V
50
0.1
0
0
0
1
2
5
10
20
50
100
0
500
1000
1500
Reverse Voltage (V)
Frequency (MHz)
Capacitance vs. Reverse Voltage
Conductance vs. Frequency
and Reverse Voltage
Resistance vs. Temperature @ 100 MHz
2
1000
IF
(mA)
R
-55°C
Ω)
(Ω
R
-15°C
Ω)
(Ω
R
+25°C
Ω)
(Ω
R
+65°C
Ω)
(Ω
R
+100°C
Ω)
(Ω
0.02
2386.0
2360.0
2546.0
2520.0
2440.0
0.10
572.0
598.0
632.0
633.0
639.0
0.30
203.0
219.0
236.0
239.0
242.0
1.00
66.1
71.2
79.3
83.6
85.4
10.00
9.1
10.0
10.9
12.2
12.9
20.00
5.6
6.0
6.6
7.4
7.8
100.00
2.2
2.4
2.6
3.0
3.2
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected]ind.com • www.alphaind.com
Specifications subject to change without notice. 1/01A
2000
Very Low Distortion Attenuator Plastic Packaged PIN Diodes
SMP1307 Series
SMP1307-027 4 Diode PI Attenuator
The SMP1307-027 employs 4 PIN diode junctions in a
5-lead SOT package. It is configured for ease of
insertion in the PI attenuator circuit commonly used for
broadband TV distribution systems, covering a frequency
range from 5 MHz to beyond 1 GHz.
A broadband attenuator was designed using the
SMP1307-027 showing good performance to 2 GHz. The
attenuator was evaluated with a 50 Ω source and load
impedance. The following figure shows the circuit
diagram and measured performance.
3
4
C6
10,000 pF
R2
1k
C1
10,000 pF
D1
RF
Input
R1
1k
5
VTUNE
0–20 V
RF
Output
R6
560
D4
R3
1k
1
C5
10,000 pF
D3
D2
C2
10,000 pF
2
R4
1k
C4
10,000 pF
R5
560
C3
10,000 pF
VREF
5V
D1–D4 SMP1307-027
A 4 diode PI attenuator utilizing individual SMP1307-011 PIN diodes is described in the “A Wideband General Purpose PIN Diode Attenuator” Application Note.
0
VCTL = 20 V
VCTL = 15 V
Attenuation (dB)
-10
VCTL = 10 V
VCTL = 5 V
-20
VCTL = 0 V
-30
-40
-50
0
0.5
1.0
1.5
2.0
Frequency (GHz)
SMP1307-027 Attenuation vs. Frequency
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com
Specifications subject to change without notice. 1/01A
3
Very Low Distortion Attenuator Plastic Packaged PIN Diodes
SOT-23
SMP1307 Series
SOT-5
0.110 (2.80 mm) MIN.
0.120 (3.04 mm) MAX.
0.012 (0.30 mm) MIN.
0.020 (0.50 mm) MAX.
3
0.083 (2.10 mm) MIN.
0.104 (2.64 mm) MAX.
0.047 (1.20 mm) MIN.
0.055 (1.40 mm) MAX.
0.014
(0.36 mm)
MIN.
0.020
(0.51 mm)
MAX.
4
2
1
0.037
(0.94 mm) REF.
0.037 (0.95 mm) REF.
0.020 (0.51 mm) REF.
0.076 (1.92 mm) REF.
1
2
3
0.060
(1.52 mm)
MIN.
0.069
(1.75 mm)
MAX.
0.102
(2.59 mm)
MIN.
0.118
(3.00 mm)
MAX.
0.037
(0.94 mm) REF.
0.035
(0.89 mm)
MIN.
0.057
(1.49 mm)
MAX.
0.110 (2.79 mm) MIN.
0.118 (3.00 mm) MAX.
0.035 (0.89 mm) MIN.
0.044 (1.12 mm) MAX.
0.003 (0.080 mm) MIN.
0.008 (0.20 mm) MAX.
8˚ MAX.
0.0005 (0.01 mm) MIN.
0.004 (0.10 mm) MAX.
0.022 (0.55 mm) REF.
5
10˚ MAX.
0.035 (0.89 mm) MIN.
0.051 (1.30 mm) MAX.
0.134
(3.4 mm)
0.004 (0.10 mm) MIN.
0.024 (0.61 mm) MAX.
0.000 (0.00 mm) MIN.
0.006 (0.15 mm) MAX.
SOD-323
0.090 (2.30 mm) MIN.
0.108 (2.74 mm) MAX.
0.045 (1.15 mm) MIN.
0.053 (1.35 mm) MAX. 1
0.010
(0.25 mm) MIN.
0.016
(0.40 mm) MAX.
2
CATHODE
INDICATOR
0.063 (1.60 mm) MIN.
0.071 (1.80 mm) MAX.
0.008 (0.20 mm) NOM.
0.006
(0.15 mm) TYP.
0.050
(1.25 mm) MAX.
0.004 (0.10 mm) MAX.
0.010 (0.25 mm) MIN.
4
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com
Specifications subject to change without notice. 1/01A