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| Digital Radio Receiver Down Converter Modules for 21.2 to 23.6 GHz Technical Data DRR1-23XX Features * Low Noise PHEMT MMIC Front End Amplifier * Image Reject Mixer * Integrated Silicon Bipolar VCO Local Oscillator * Low Phase Noise * Operated Over -30C to +70C * Excellent Tuning Linearity * Sample Output for Phase Locking Description This digital radio receiver module provides the RF receive and down conversion function for 23 GHz digital radios. These modules offer excellent phase noise performance and can be easily phase locked to a frequency reference. The receiver module provides an output power of 3 dBm at the IF frequency and is ideal for use in radios using 2 and 4 level FSK modulation. The excellent low noise figure is achieved by using the Hewlett-Packard PHEMT MMIC technology coupled with an image reject mixer. The receiver module features an integrated ultra low noise silicon bipolar VCO operating in the S/C band as the local oscillator. A portion of the oscillator output is coupled off and is applied to a frequency divider network. The low frequency output from the frequency divider can then be easily used to phase lock the source. The local oscillator output is applied to a frequency multiplier network to produce the desired LO frequency to the mixer. Applications This digital radio receiver module provides the total RF receive and down conversion function in radios operating in the 21.2 to 23.6 GHz band. Block Diagram Receiver Module Tuning Voltage LO X3 BPF MMIC AMP MMIC AMP MMIC X2A Signal Sample Output +4 MSA-1100 MMIC AMP BPF RF Input LNA MIXER 21.2 to 23.6 GHz MMIC IF Output 5965-5087E 8-4 DRR1-23XX Absolute Maximum Ratings (TA = -30 to +70C) Parameters DC Circuit Power +8.5 +5.0 -5.0 Tuning Voltage Units Volts Volts Volts Volts Ratings 10 +5.5 -5.5 14 Notes: 1. Operation in excess of any one of these parameters may result in permanent damage. 2. A thermal interface medium must be used between the bottom of the package and its mating surface to ensure optimum heat transfer. DRR1-23XX Electrical Characteristics Parameters RF Tuning Range IF Frequency IF Bandwidth LO Frequency Gain Gain Flatness over 300 MHz Noise Figure Operating Temperature Range Storage Temperature Range Power Input at P-1dB LO Leakage at I[1] LO Leakage at R[2] Return Loss RF Port Return Loss IF Port Image Rejection Sample Out Frequency Sample Out Power Spurious Output[3] Phase Noise @ 100 KHz Tuning Voltage Input Capacitance, Nom LO Tuning Sensitivity LO Tuning Sensitivity Variation DC Circuit Power: 8.5 Volts 5 Volts -5 Volts Case Dimensions Max Power at Input/no damage Humidity Non Condensing Condensing Connectors Units GHz MHz MHz GHz dB dB dB C C dBm dBm dBm dB dB dB MHz dBm dBc dBc/Hz V pf MHz/V mA mA mA inches dBm % % Min. 21.2 Typ. 630 or 1260 Max. 23.6 20 20.57 or 19.94 18 4.5 -30 -45 -22 22.97 or 22.34 26 1 5.5 70 85 -15 -15 -17 12 14 12 857 or 831 -10 15 957 or 931 0 -60 -82 12 500 2.0:1 300 400 30 10 85 95 WR 42 or SMA -85 1 1,000 300 1.5 : 1 3.5 x 1.25 x 0.40 Notes: 1. LO and Harmonic/sub-harmonic leakage at I with RF terminated into a 50 load. 2. LO and Harmonic/sub-harmonic leakage at R up to 50 GHz. 3. Measured at IF port within the IF bandwidth with single tone RF input of < - 20 dBm. 8-5 DRR1-23XX Typical Performance 28 26 24 22 20 18 16 21 T = +25C T = -30C T = +70C Spec Min 22 23 24 5 21 22 23 24 2 21 Spec Max IMAGE REJECTION (dB) 25 30 T = +25C T = -30C T = +70C NOISE FIGURE (dB) 6 Spec Max 5 GAIN (dB) 20 4 15 Spec Min 10 3 T = +25C T = -30C T = +70C 22 23 24 FREQUENCY (GHz) FREQUENCY (GHz) FREQUENCY (GHz) Figure 1. Conversion Gain vs. Frequency. Figure 2. Image Rejection vs. Frequency. Figure 3. Noise Figure vs. Frequency. -12 -14 -16 -18 -20 -22 Spec Min -24 21 T = +25C T = -30C T = +70C dBc (Hz) -40 24 TUNING VOLTAGE FREQUENCY (GHz) 400 MODULATION SENSITIVITY (MHz/V) -60 23 350 P IN (dBm) -80 300 22 -100 -120 MODULATION SENSITIVITY 250 -140 22 23 24 1 10 100 1000 FREQUENCY (GHz) KHz Offset from Carrier 21 1 2 3 4 5 6 7 8 200 9 10 11 12 TUNING VOLTAGE (V) Figure 4. Power In at P1dB Out vs. Frequency. Figure 5. Phase Noise at 23 GHz vs. KHz Offset from Carrier. Figure 6. Tuning Voltage vs. Frequency and Modulation Sensitivity. Powering Up Instructions The -5 volts must be applied to the receiver module before applying the +5 volts. Likewise when shutting down the receiver module the +5 volts must be removed before the -5 volts is turned off. The +8.5 volts can be turned on in any sequence. Failure to follow this procedure could cause permanent damage to the module. Mounting Instructions Case must be mounted firmly, with screws, to an adequate metallic structure that has sufficient thermal properties to maintain the module case at a temperature not to exceed 70C. Product Options Specify part number followed by option. For example: DR R 1 - 23 X X Model Number Prefix = Digital Radio R = Receiver Module Internal Use 1 = SMA Connector 2 = WR-42 Waveguide Connector 1 = 630 MHz IF Frequency 2 = 1260 MHz IF Frequency 23 = 21.2 to 23.6 GHz Frequency Band 8-6 Case Dimensions (specified in inches) H D/C XXXX DRRI-23XX S/N XXXX 1.250 GND 1F +8.5V -5V +5V +8.5V GND F/4 +5V VT GND 11x .200 2.700 3.50 1.10 8x .100 .40 MAX 11x .220 1.70 11x O .025 2.35 SEE DETAIL A .120 2.430 .125 6x O .120 THRU .445 .500 .445 .500 .820 .670 .170 .640 .420 O .067 .001 .100 4X 4-40 UNC-2B .120 .375 DETAIL A 8-7 |
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