DD01-92

DD01-92 ALPHA | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 3

Technical content

Features

n Frequency Coverage: 650 MHz to 2.5 GHz n Small Outline SC-88 (6 Lead SC-70) Package n Built-in Temperature Compensating Diode n Low Cost for High Volume Handset

Applications

n Tape and Reel Availability DD01-92

Description

The DD01-92 directional detector is an integrated directional coupler, Schottky diode combination designed for handset power monitor applications specified from 800 MHz to 2 GHz. It is packaged in the small footprint, SC-88 (6 lead SC-70) package. The DD01-92 incorporates a directional coupler and two GaAs Schottky diodes on a monolithic GaAs chip. By applying forward DC bias to both Schottky diodes, the DD01-92 may be conveniently temperature compensated. The DD01-92 is characterized from 650 MHz to 2.5 GHz and generates a detected signal at 1.8 GHz of approximately 200 mV at 10 mW input power. Each Schottky diode is forward biased to approximately 5 mA by applying 1 V through 100 kW resistors as shown in the test circuit. 12 3 654RF Out DC Bias/AC GND Temp Comp Out DD1 RF In DC Bias/AC GND Detected Out Pin Out Parameter Frequency Min. Typ. Max. Unit Detected Voltage 0.8–1.2 GHz 80 120 mV 1.8–2.0 GHz 150 200 mV Insertion Loss 870–920 MHz 0.25 0.30 dB 1.7–1.8 GHz 0.50 0.55 dB Input Return Loss 0.8–1.2 GHz 20 dB 1.2–2.0 GHz 15 dB Output Return Loss 0.8–1.2 GHz 20 dB 1.2–2.0 GHz 15 dB Directivity 0.8–2.0 GHz 10 dB Schottky Noise Voltage (1 MHz Bandwidth) RF Power Off 200 mV Schottky Diode DC Voltage RF Power Off 480 mV DC Offset Voltage RF Power Off 10 mV Video Resistance RF Power Off 7,500 W Electrical Specifications at 25°C Conditions: 10 dBm input power, 1 V applied to test circuit. Detected voltage is differential voltage, V4–V3, on test circuit. Insertion loss at 870–920 MHz shall be less than 0.4 dB at 85°C. Insertion loss at 1.7–1.8 GHz shall be less than 0.6 dB at 85°C.

Directional Detector DD01-92 2 Alpha Industries, Inc.[781] 935-5150 • Fax [617] 824-4579• Emailsales@alphaind.com • www.alphaind.com Specifications subject to change without notice. 1/01A Typical Performance Data Differential Detected Voltage vs. Frequency 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Frequency (GHz) Detected Voltage (V) 20 dBm 15 dBm 10 dBm 5 dBm Differential Detected Voltage vs. Input Power 0.001 0.010 0.100 1.000 -10 -5 0 5 10 15 20 Input Power (dBm) Detected Voltage (V)

0.9 GHz

1.8 GHz

Insertion Loss and Return Loss -1.2 -1.0 -0.8 -0.6 -0.4 -0.2 Frequency (GHz) Insertion Loss (dB) -60 -50 -40 -30 -20 -10 Return Loss (dB) Insertion Loss Input Return Loss Output Return Loss Temperature Sensitivity at 1.7 GHz 100 1000 -40 -20 0 20 40 60 80 Temperature (˚C) Detected Voltage (mV) 17 dBm 10 dBm 0 dBm Schottky Diode DC Characteristic 0.001 0.010 0.100 1.000 10.000 0 0.5 1.0 1.5 Forward Voltage (V) Forward Current (mA) +85˚C +25˚C -40˚C Conditions: 1.7 GHz, 10 dBm input power, 1 V applied to test circuit. Detected voltage is differential voltage, V4–V3, on test circuit. Input Power V Out @ -40°C V Out @ +25°C V Out @ +85°C (dBm) (mV) (mV) (mV) 07 4 6 4 5 9 10 241 230 226 17 570 550 550 Typical Detected Voltage vs. Temperature

Directional Detector DD01-92 Alpha Industries, Inc.[781] 935-5150 • Fax [617] 824-4579• Emailsales@alphaind.com • www.alphaind.com 3 Specifications subject to change without notice. 1/01A Characteristic Value Incident Power (CW) 4 W @ < 1 GHz @ SWR = 2.0 Max. 2 W @ 1–2.5 GHz DC Bias Current 10 mA Operating Temperature -40 to +85°C Storage Temperature -65 to +150°C Absolute Maximum Ratings 0.079 (2.00 mm) ± 0.008 (0.20 mm) 0.049 (1.25 mm) ± 0.004 (0.10 mm) 0.008 (0.20 mm) ± 0.004 (0.10 mm) 0.087 (2.20 mm) ± 0.008 (0.20 mm) 0.035 (0.90 mm) ± 0.004 (0.10 mm) 0.002 (0.005 mm) ± 0.006 (0.15 mm) 0.010 (0.25 mm) ± 0.006 (0.15 mm) 0.0055 (0.14 mm) ± 0.0015 (0.04 mm) 0.0256 (0.65 mm) BSC 0.009 (0.23 mm) REF PIN 1 INDICATOR SC-88 (6 Lead SC-70) 15 pF RF Out 22 nH Bias In Temp. Comp. Out 100 k 100 k 100 pF 100 pF Detect OutRF In SK38908 DD0*-92 Evaluation Board Layout RF In RF In RF Out 65 4 321 100 pF 15 pF 22 nH1 V Bias 100 kW Detected Output RF Out Direct Temperature Compensation Out 100 pF100 kW Test Circuit