VENUS-L ZARLINK | Alldatasheet
Document overview
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Technical content
This product is obsolete. This information is available for your convenience only. For more information on Zarlink’s obsolete products and replacement product lists, please visit http://products.zarlink.com/obsolete_products/
Features
- Selectable dual RF input ports for 900MHz AMPS and 1900MHz CDMA bands.
- Power Management Control
Description
VENUS-L is a dual integrated mixer circuit designed to meet the IS95 and J-STD-008 receive system specifica- tions, operating in the 900MHz and 1900MHz bands. Venus-L built on a Zarlink advanced bipolar process with an FT of 25GHz. VENUS-L CDMA/AMPS Dual Band and RF Receiver Datasheet DS5082 ISSUE 2.2 November 2001
Ordering Information
(16 lead QSOP Package, in tubes) Figure 1 - Block diagram GND VCC CDMA IF CONTROL CDMA IFB AMPS IF AMPS IFB CHIP ENABLE BAND 1900 LO 1GHZ LO 2GHZ RF 1900 RF 900
The RF section of VENUS-L contains all of the circuitry necessary to downconvert the RF signal from 900 MHz or 1900 MHz to an IF of 50-250 MHz, and to correctly interface with a suitable IF SAW filter. Two RF inputs are provided, one for the 1900MHz band and one for the 900 MHz band. The required input is activated by means of the ‘BAND 1900’ pin. The input is a g m stage which will provide a characteristic impedance to correctly terminate the RF image-reject SAW filter. Two LO ports are provided, one for 1900MHz band and one for 900 MHz band, both with low noise buffer amplifiers. External matching components are required on the RF, LO and IF ports. PIN 1 REF. SPOT Figure 2 - Pin Connections QSOP16 CDMA IF CDMA IFB VCC LO 2GHZ GND RF 900 GND CHIP ENABLE BAND 1900 GND RF 1900 GND LO 1GHZ VCC AMPS IFB AMPS IF Pin Description Pin No Pin Name Description
1 CDMA IF CDMA (1900MHz mixer) IF SAW output
2 CDMA IFB CDMA (1900MHz mixer) IF SAW output bar
3 VCC Positive supply
4 LO 2GHZ 2 GHz LO input for 1900MHz mixer
5 GND Ground
6 RF 900 900MHz RF input
7 GND Ground
8 CHIP ENABLE Logic input for chip enable
9 AMPS IF AMPS (900MHz mixer) IF SAW output
10 AMPS IFB AMPS (900MHz mixer) IF SAW output bar
11 VCC Positive supply
12 LO 1GHZ 1GHz LO input for 900MHz mixer
13 GND Ground
14 RF 1900 1900MHz RF input
15 GND Ground
16 BAND 1900 Logic input to select 1900MHz or 900MHz signal path operation
Description Min. Typ. Max. Units Comments Supply voltage, Vcc 4.0 V Operating temperature, Top -30 70 deg C Pin temperature Storage temperature, Tstg -40 125 deg C Ambient temperature Junction temperature -30 125 deg C Logic input high, VIH Vcc+0.6 V Logic input low, VIL -0.6 V Electrostatic Protection. High frequency RF device. This device has limited ESD protection on some pins (500V Human body Model). Electrostatic handling precautions must be applied. Description CHIP ENABLE BAND 1900 Comments Standby Mode 0 X All circuits powered down 900MHz (AMPS) 1 0 900MHz (AMPS) signal path enabled 1900MHz (CDMA) 1 1 1900MHz (CDMA) signal path enabled Operating Modes Characteristic Value Units Conditions Min Typ Max General Supply voltage 2.7 3.0 3.6 V All Vcc pins. Operating. Temperature -30 25 70 deg C Ambient Current Consumption Standby Mode, RF section 10 100 µA 1900MHz Mode operation 15 mA 900MHz Mode operation 13 mA Control Logic Input logic high, VIH Vcc-0.5 Vcc+0.1 V All logic inputs Input logic low, VIL -0.1 0.5 V All logic inputs Input high current, IIH -10 10 µA All logic inputs Input low current, IIL -10 10 µA All logic inputs Electrical Characteristics (DC specification) TAMB = -30°C to +70°C, VCC = +2.7 to +3.6V. These characteristics are guaranteed by either production test or design. They apply within the specified ambient temperature and supply voltage ranges unless otherwise stated.
Electrical Characteristics (AC specification) TAMB = -30°C to +70°C, VCC = +2.7 to +3.6V. These characteristics are guaranteed by either production test or design. They apply within the specified ambient temperature and supply voltage ranges unless otherwise stated. Unless otherwise stated the frequencies used for measurements are to be. 1900MHz Signal Path: RF = 1960MHz, LO = 1749.62MHz, IF = 210.38MHz. Characteristic Value Units Conditions Min Typ Max 1900MHz Signal Path Input = RF 1900 Output =CDMA IF and CDMA IFB Overall Power Gain, RF input to IF 8 9 10 dB LO= -10dBm from a 50 Ohm source output Noise Figure 9 11 dB Total to IF outputs (SSB). Input third order intercept point 4 dBm RF Input impedance 50 Ohm With simple external matching network. Matching network must include an inductor connected between the RF 1900 pin and GND. RF port Return Loss 15 dB With simple external matching network. Matching network mus include an inductor connected between the RF 1900 pin and GND RF Frequency 1800 2000 MHz IF Frequency 50 250 MHz Input 1dB compression -10 dBm Load impedance 1000 Ω Differential. Will require an external resistor and a simple external matching network.
Electrical Characteristics (AC specification) Continued TAMB = -30°C to +70°C, VCC = +2.7 to +3.6V. These characteristics are guaranteed by either production test or design. They apply within the specified ambient temperature and supply voltage ranges unless otherwise stated. Unless otherwise stated the frequencies used for measurements are to be. 900MHz Signal Path: RF = 881.5MHz, LO = 966.88MHz, IF = 85.38MHz. Characteristic Value Units Conditions Min Typ Max 900MHz Signal Path Input=RF 900 Output=AMPS IF and AMPS IFB Overall Power Gain, RF input to IF 7 8 9 dB LO= -10dBm from a 50ohm output source Noise Figure 9 11 dB Total to IF outputs (SSB). Input third order intercept point 5 dBm RF Input impedance 50 Ohm With simple external matching network. Matching network must include an inductor connected between the RF 900 pin and GND. Return Loss 15 dB With simple external matching network. Matching network must include an inductor connected between the RF 900 pin and GND RF Frequency 800 1000 MHz IF Frequency 50 250 MHz Input 1dB compression -8 dBm Load impedance 850 Ω Differential. Will require an externa lresistor and a simple external matching network. RF LO BUFFERS LO feedthrough to IF outputs -30 dBm LO feedthrough to RF inputs -40 dBm LO input level -10 -5 dBm LO input impedance 50 Ω With simple external matching network LO port Return Loss 15 dB With simple external matching network
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