PDF BVA2140 Data sheet ( Hoja de datos )

Número de pieza	BVA2140
Descripción	0.7-4GHz 1/4W Medium Power DIGITAL VARIABLE GAIN AMPLIFIER
Fabricantes	BeRex
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No Preview Available ! BVA2140 0.7- 4GHz 1/4W Medium Power DIGITAL VARIABLE GAIN AMPLIFIER Product Description Figure 2. Package Type The BVA2140 is a digitally controlled variable gain amplifi- er (DVGA) in a small 4x4mm QFN package, with a broad- band frequency range of 700 to 4000 MHz and an oper- ating VDD of 5.0V at 150mA. BVA2140 is high performance and high dynamic range makes it ideally suited for use in WCDMA/LTE wireless infrastructure point-to-point and other demanding wire- less applications. The BVA2140 is an integration of a high performance digi- tal 6-step attenuator (DSA) that provides a 31.5 dB attenu- ation range in 0.5 dB steps, and high linearity broadband gain block amplifiers featuring high ACLR and P1. The BVA2140 digital control interface supports serial pro- gramming of the attenuator, and includes the ability to define the initial attenuation state at power-up. Implementation requires only a few external components, such as DC blocking capacitors on the Input and Output pins, plus a bypass capacitor and a RF choke for the Output port. Figure 1. Functional Block Diagram 24-lead 4x4 mm QFN Device Features  Small 24-Pin 4 x 4 mm QFN Package  Integrate Amp1 to DSA and DSA to Amp2 Functionality  Wide Power supply range of +2.7~5.5V(DSA)  Single Fixed +5.0V supply(Amp)  700-4000MHz Broadband Performance  30.2dB Gain at 2.14GHz (Matching Circuit)  2.9dB Noise Figure at max gain setting at 2.14GHz(Matching Circuit)  25.1dBm P1dB at 2.14GHz (Matching Circuit)  40dBm OIP3 at 2.14GHz(10dBm per tone, Matching Circuit)  15.2dBm LTE 20MHz ACLR at 1.9GHz (FDD E-TM1.1, 20MHz BW, ±20MHz offset, PAR 9.81 at 0.01% Prob. , –50dBc)  Attenuation: 0.5 dB steps to 31.5 dB  Safe attenuation state transitions  Monotonicity: 0.5 dB up to 4 GHz  High attenuation accuracy(DSA to Amp) ±(0.3dB + 5% x Atten) @ 0.7~4GHz  1.8V control logic compatible  Programming modes - Serial  Unique power-up state selection 18 17 16 15 14 13 VSS/GND 19 P/S 20 DSAIN 21 GND 22 AMP1OUT 23 GND 24 DSA AMP1 AMP2 123456 12 CLOCK 11 DATA 10 DSAOUT 9 GND 8 AMP2IN 7 GND Application  Base station/Repeater Infrastructure  LTE/WCDMA/CDMA Wireless infrastructure and other high performance RF application  Commercial/Industrial/Military Wireless system  General purpose Wireless BeRex ●website: www.berex.com ●email: [email protected] Specifications and information are subject to change and products may be discontinued without notice. BeRex is a trademark of BeRex. All other trademarks are the property of their respective owners. © 2016 BeRex 1 Rev. 0.1 1 page BVA2140 0.7- 4GHz 1/4W Medium Power DIGITAL VARIABLE GAIN AMPLIFIER Figure 4. Pin Configuration(Top View) Table 8. Pin Description Pin 2,3,4,5,7,9,1 7,18,22,24 Pin name GND Description Ground 1 AMP1IN RF Amp1 in Port 6 AMP2OUT RF Amp2 out Port 8 AMP2IN RF Amp in Port 10 RF11 RF port(DSA output) 11 DATA Serial interface data input 12 Clock Serial interface clock input 13 LE3 Latch Enable input 14 PUP14 Power-up selection bit 1 15 PUP2 Power-up selection bit 2 16 VDD DSA Supply voltage (nominal 5.0V) 19 VSS/GND External VSS negative voltage control or ground 20 P/S Parallel/Serial mode select 21 RF21 RF port(DSA input) 23 AMP1OUT RF Amp1 out Port Note: 1. RF pins 10 and 21 must be at 0V DC. The RF pins do not require DC blocking capacitors for proper Operation if the 0V DC requirement is met 2. Use VssEXT (pin 12) to bypass and disable internal negative voltage generator. Connect VssEXT (pin 12, VssEXT = GND) to enable internal negative voltage generator 3. This pin has an internal 2 MΩ resistor to internal positive digital supply 4. This pin has an internal 200 kΩ resistor to GND BeRex ●website: www.berex.com ●email: [email protected] Specifications and information are subject to change and products may be discontinued without notice. BeRex is a trademark of BeRex. All other trademarks are the property of their respective owners. © 2016 BeRex 5 Rev. 0.1 5 Page BVA2140 0.7- 4GHz 1/4W Medium Power DIGITAL VARIABLE GAIN AMPLIFIER Typical RF Performance Plot - BVA2140 EVK - PCB(900MHz Application Circuit) Typical Performance Data @ 25°and VDD = 5.0V unless otherwise noted and RF Circuit Table 12. Typical Performance : 900MHz Figure 17. Gain vs Frequency @Max Gain state parameter Frequency Gain S11 S22 S12 OIP31 P1dB Noise Figure LTE20MHz ACLR2 Typical Values 900 38.6 -18.9 -10.5 -52.0 45 25.9 2.6 16 Units MHz dB dB dB dB dBm dBm dB dBm 1 OIP3 _ measured with two tones at an output of 10 dBm per tone separated by 1 MHz. 2 LTE set-up: 3GPP LTE, FDD E-TM1.1, 20MHz BW, ±20MHz offset, PAR 9.81 at 0.01% Prob. @ACLR –50dBc . Figure 18. Input Return Loss vs Frequency @Max Gain & Min Gain state Figure 19. Output Return Loss vs Frequency @Max Gain & Min Gain state Figure 20. Attenuation Error vs Attenuation Setting @900MHz Figure 21. Attenuation Error vs Frequency @Major Attenuation Steps Note: Upper Limit & Lower Limit is the value converted to a graph 0.3dB+0.5% BeRex ●website: www.berex.com ●email: [email protected] Specifications and information are subject to change and products may be discontinued without notice. BeRex is a trademark of BeRex. All other trademarks are the property of their respective owners. © 2016 BeRex 11 Rev. 0.1 11 Page

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