VG101-PCB

VG101 Product Features • • • • • The Communications Edge TM Product Information Cellular-band Variable Gain Amplifier Product Description The VG101 is a cellular-band high dynamic range variable gain amplifier (VGA) packaged in a low profile Pb-free / RoHS-compliant surface-mount leadless package that measures 6 x 6 mm square. The +22 dBm output compression point and +40 dBm output intercept point of the amplifier are maintained over the entire attenuation range, making the VG101 ideal for use in transmitter and receiver AGC circuits and as a variable gain stage following an LNA in high dynamic range receiver front ends. Superior thermal design allows the product to have a minimum MTTF rating of 1000 years at a mounting temperature of +85 ºC. All devices are 100% RF & DC tested and packaged on tape and reel for automated surface-mount assembly. Functional Diagram Gain Ctrl GND GND 7 GND 8 GND 9 GND 10 RF IN 11 GND 12 GND 13 GND 14 15 GND 16 GND 17 GND 18 GND 19 N/C 20 GND 21 MATCH 6 5 4 3 GND 2 GND GND 1 28 GND 27 GND 26 GND 25 RF OUT 24 GND 23 GND 22 GND N/C 750 – 1000 MHz bandwidth 28 dB Attenuation Range +40 dBm Output IP3 +22 dBm P1dB Constant IP3 & P1dB over attenuation range • Single voltage supply • Pb-free 6mm 28-pin QFN package • MTTF > 1000 years Amp Variable Attenuator Applications • Xmit & Rcv AGC circuitry for mobile infrastructure Function Gain Control No Connect RF Input Interstage Match RF Output / DC bias Ground Pin No 5 7, 19 11 21 25 All other pins Backside copper Specifications (1) Parameter Operational Bandwidth Test Frequency Gain at min. attenuation Input Return Loss Output Return Loss Output P1dB Output IP3 Noise Figure at min. attenuation Gain Variation Range Gain Variation Control Voltage, VCTRL Group Delay Supply Voltage Operating Amplifier Current Range Gain Control Pin Current Units MHz MHz dB dB dB dBm dBm dB dB V ns V mA mA Min 750 15 Typ 900 16 12 10 +22 +40 3 28.7 1 +5 150 Max 1000 See note 1 Conditions +37 25.5 0 33.5 4.5 See note 2 VCTRL = 0 V See note 3 See note 1 Frequency = 900 MHz Pin 25 VCTRL = 4.5 V. See note 1. 120 180 20 1. Test conditions unless otherwise noted: 25ºC, Vdd = +5 V in a tuned application circuit. Vctrl is the control voltage through a BJT transistor and a 100 Ω dropping resistor as shown in the same application circuit. 2. 3OIP measured with two tones at an output power of +5 dBm/tone separated by 10 MHz. The suppression on the largest IM3 product is used to calculate the 3OIP using a 2:1 rule. 3. The gain variation range is measured as the difference in gain with Vctrl = 0V and Vctrl = 4.5V at 0.9 GHz. Absolute Maximum Rating Parameter Operating Case Temperature Storage Temperature Amplifier Supply Voltage (pin 25) Pin 5 (Gain Control) Current RF Input Power (continuous) Junction Temperature -40 to +85 °C -55 to +125 °C +6 V 30 mA +12 dBm +220 °C Rating Ordering Information Part No. VG101* VG101-F VG101-PCB * Description Cellular-band Variable Gain Amplifier (tin-lead 6mm QFN package) Cellular-band Variable Gain Amplifier (lead-free/RoHS-compliant QFN package) Fully Assembled Application Board Operation of this device above any of these parameters may cause permanent damage. This package is being phased out in favor of the lead-free/RoHS-compliant package type which is backwards compatible for existing designs. Refer to WJPCN06MAY05TC1 on the WJ website. Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • W eb site: www.wj.com Page 1 of 5 June 2005 VG101 The Communications Edge TM Product Information Cellular-band Variable Gain Amplifier Application Circuit: 750 – 1000 MHz (VG101-PCB) Circuit Board Material: .014” FR-4, 4 layers, .062” total thickness • The amplifier is biased through Pin 25 and should be connected directly into a voltage regulator. • Distances are shown from the edge-to-edge for the land pattern. Ref. Des. C1, C3 C2, C4 C5 L1 L2 L3 L4 R1 R3 R4 R5 Q1 U1 OIP3 vs. Output Power 45 40 35 30 +25C 25 -4 0 4 8 Output Power (dBm) 12 16 -40C +85C 25 0 2 4 6 Attenuation (dB) 8 10 frequency = 900, 910 MHz, 0dB Atten. Bill of Materials Description 47 pF Chip Capacitor 0.01 μF Chip Capacitor 1 pF Chip Capacitor 82 nH Chip Inductor 39 nH Chip Inductor 2.7 nH Chip Inductor 8.2 nH Chip Inductor 100 Ω Chip Resistor 2.7 Ω Chip Resistor 4.7 Ω Chip Resistor 47 Ω Chip Resistor MMBT2222 Motorola Transistor VG101 Variable Gain Amplifier Size 0603 0603 0603 0603 0603 0603 0603 0603 0603 0603 0603 SOT-23 QFN 6x6 OIP3 vs. Attenuation Setting 45 40 35 frequency = 900, 910 MHz, 25C, 10 dBm/tone ACPR vs. Channel Power -40 880 MHz, IS-95, 9 Ch. Forward, ±885 kHz offset, 30 kHz Meas BW, 25°C -50 0dB Attn 5dB Attn 10dB Attn -60 30 -70 12 13 14 15 16 Output Channel Power (dBm) Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • W eb site: www.wj.com Page 2 of 5 June 2005 VG101 20 15 10 5 0 -5 -10 -15 -20 0 5 10 15 +25°C -40°C The Communications Edge TM Product Information Cellular-band Variable Gain Amplifier VG101-PCB Application Circuit Performance (cont’d) Gain vs. Pin 5 Attn. Control Current Normalized Gain vs. Pin 5 Control Current Noise Figure vs. Frequency Vctrl=0V (Minimum attenuation) 40 +85°C 35 30 25 20 15 10 5 0 +25°C -40°C +85°C 10 -40°C 8 6 4 2 0 +25°C +85°C 20 25 0.1 1.0 10.0 100.0 700 750 800 850 900 950 1000 Pin 5 Attenuation Control Current (mA) S21 vs. Frequency Vctrl=0V (Minimum attenuation), +25 °C Pin 5 Attenuation Control Current (mA) S11, S22 vs. Frequency Vctrl=0V (Minimum attenuation), +25 °C Frequency (MHz) P1dB vs. Frequency Vctrl=0V (Minimum attenuation) 16 15 S 1 1 , S 2 2 (d B ) S 2 1 (d B ) 14 13 12 11 700 0 26 S11 -5 -10 -15 -20 -25 700 S22 24 22 20 18 -40°C 16 750 800 850 900 950 1000 850 875 750 800 850 900 950 1000 +25°C 900 +85°C 925 950 Frequency (MHz) Frequency (MHz) Frequency (MHz) S21 vs. Frequency vs. Control Voltage S11 vs. Frequency vs. Control Voltage S22 vs. Frequency vs. Control Voltage 20 10 S 2 1 (d B ) 0 -10 -20 750 Vctrl=0V Vctrl=2V Vctrl=4V Vctrl=1V 0 Vctrl=0V Vctrl=1V Vctrl=3V Vctrl=4.5V 0 Vctrl=0V Vctrl=1V Vctrl=3V Vctrl=4.5V Vctrl=2V Vctrl=4V -5 S 1 1 (d B ) -10 -15 -20 -25 750 -5 S 2 2 (d B ) -10 -15 -20 -25 750 Vctrl=2V Vctrl=4V Vctrl=3V Vctrl=4.5V 800 850 900 950 1000 800 850 900 950 1000 800 850 900 950 1000 Frequency (MHz) Frequency (MHz) Ictrl vs. Vpin5 3.0 2.5 V p in 5 (V ) Frequency (MHz) Ictrl vs. Vctrl Vctrl, Vpin5 vs. Ictrl 6 5 V c trl ( V ) 4 3 2 Vctrl vs Ictrl 1 0 0 5 10 Ictrl (mA) 15 20 V5 vs Ictrl 0.5 0.0 Ic trl (m A ) 1.5 1.0 0.0 0.5 1.0 1.5 Vpin5 (V) 2.0 2.5 3.0 Ic trl (m A ) 2.0 18 16 14 12 10 8 6 4 2 0 18 16 14 12 10 8 6 4 2 0 0 1 2 Vctrl (V) 3 4 5 Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • W eb site: www.wj.com Page 3 of 5 June 2005 VG101 The Communications Edge TM Product Information Cellular-band Variable Gain Amplifier VG101 Mechanical Information This package may contain lead-bearing materials. The plating material on the pins is SnPb. Outline Drawing Product Marking The component will be lasermarked with a “VG101” designator with an alphanumeric lot code on the top surface of the package. Tape and reel specifications for this part will be located on the website in the “Application Notes” section. ESD / MSL Information ESD Rating: Value: Test: Standard: ESD Rating: Value: Test: Standard: Class 1B Passes 500V to