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MFG:ADI D/C:09
Part Number: AD6630
MFG: ADI
D/C: 09
Description: The AD6630 is an IF gain block designed to interface between SAW filters and differential input analog-to-digital conve...
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AD6630
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DataSheet
General Description
AD6630 General Description
The AD6630 is an IF gain block designed to interface between SAW filters and differential input analog-to-digital converters. The AD6630 has a fixed gain of 24 dB and has been optimized for use with the AD6600 and AD6620 in digitizing narrowband IF carriers in the 70 MHz to 250 MHz range.
Taking advantage of the differential nature of SAW filters, the AD6630 has been designed as a differential in/differential out gain block. This architecture allows 100 dB of adjacent channel blocking using low cost SAW filters. The AD6630 provides output limiting for ADC and SAW protection with ,10° phase variation in recovery from overdrive situations.
Designed for "narrow-band" cellular/PCS receivers, the high linearity and low noise performance of the AD6630 allows for implementation in a wide range of applications ranging from GSM to CDMA to AMPS. The clamping circuitry also maintains the phase integrity of an overdriven signal. This allows phase demodulation of single carrier signals with an overrange signal.
While the AD6630 is optimized for use with the AD6600 Dual Channel, Gain Ranging ADC with RSSI, it can also be used in many other IF applications. The AD6630 is designed with an input impedance of 200 and an output of 400 . In the typical application shown below, these values match the real portion of a typical SAW filter. Other devices can be matched using standard matching network techniques.
The AD6630 is built using Analog Devices' high speed complementary bipolar process. Units are available in a 300 mil SOIC (16 leads) plastic surface mount package and specified to operate over the industrial temperature range (40°C to +85°C).
AD6630 Maximum Ratings
| Parameter | Min | Max | Units |
| Single Supply Voltage | 0.5 | 11.5 | V |
| Positive Supply Voltage | 0.5 | 5.75 | V |
| Negative Supply Voltage | 5.75 | 0.5 | V |
| Input Power | +8 | dBm | |
| Storage Temperature | 65 | +150 | °C |
| Junction Temperature | +150 | °C | |
| ESD Protection | 1 | kV |
AD6630 Features
24 dB Gain
4 dB Noise Figure
Easy Match to SAW Filters
Output Limiter Adjustable +8.5 dBm to +12 dBm
700 MHz Bandwidth
10 V Single or Dual 5 V Power Supply
300 mW Power Dissipation
4 dB Noise Figure
Easy Match to SAW Filters
Output Limiter Adjustable +8.5 dBm to +12 dBm
700 MHz Bandwidth
10 V Single or Dual 5 V Power Supply
300 mW Power Dissipation
AD6630 Typical Application
ADC IF Drive Amp
Communications Receivers
PCS/Cellular Base Stations
GSM, CDMA, TDMA
Communications Receivers
PCS/Cellular Base Stations
GSM, CDMA, TDMA
AD6630 Connection Diagram
AD6630
PDF/DataSheet Download
- Datasheet: AD6630
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