STB7102 STMICROELECTRONICS | Alldatasheet

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1/9February, 25 2002 STB7102 0.5/2.5 GHz UHF LO BUFFER AMPLIFIER SOT323-6L (SC70) ORDER CODE STB7102TR BRANDING 102 (Bottom View) (Top View) PIN CONNECTION Pin No. Pin Name

1 INPUT

4 OUTPUT

  • OPERATING FREQUENCY 500-2500MHz
  • LOW CURRENT CONSUMPTION
  • EXCELLENT ISOLATION
  • ULTRA MINIATURE SOT323-6L PACKAGE

APPLICATIONS

  • BUFFER AMPLIFIER FOR 0.5/2.5 GHz
  • CDMA/PCS LO BUFFER AMPLIFIER

DESCRIPTION

The STB7102, designed for RF Mobile Phone applications (0.5/2.5GHz), is an high isolation Local Oscillator Buffer Amplifier. Manufactured in the third generation of ST proprietary bipolar process, it offers an excellent isolation and a good linearity using only 4mA current consumption. The STB7102 is housed in an ultra miniature package SOT323-6L surface mount package. ABSOLUTE MAXIMUM RATINGS Symbol Parameter Conditions Value Unit Vcc Supply voltage 3.3 V Tstg Storage temperature -40 to +100 oC Ta Operating ambient temperature -30 to +85 oC

ELECTRICAL CHARACTERISTICS ( CELL BAND ) (Ta = +25oC, Vcc = 2.7V, Zs = ZL = 50Ω , tested in circuit shown in fig.1, unless otherwise specified) Symbol Parameters Test Conditions Min Typ Max Unit Freq. Frequency Range 990 1030 MHz Vcc Supply Voltage 2.6 2.7 2.8 V Icc Current Consumption 3.3 4.3 5.3 mA P1dB Output Power at 1dB Compression Point F = 1010 MHz -2 dBm Gp Power Gain F = 1010 MHz 16.7 dB NF Noise Figure F = 1010 MHz 2.7 dB Isol. Reverse Isolation F = 1010 MHz 45 dB RLin Input Return Loss F = 1010 MHz 30 dB RLout Output Return Loss F = 1010 MHz 17.8 dB GND3 GND2 INPUT1 VCC 6 GND 5 OUT 4 ULOBA 10nF 33pF 1.5pF 33nH C21uF JP 1 VCC 33pF 2n2 RF IN 10nH RF OUT 5n6 Figure 1 Cell Band Application Circuit Configuration

TYPICAL PERFORMANCE (CELL BAND) Power Gain vs. Frequency and Voltage 800 900 1000 1100 1200 Frequency (MHz) Power Gain (dB) Vcc = 2.8 V Vcc = 2.7 V Vcc = 2.6 V Ta = 25 °C Power Gain vs. Frequency and Temperature 800 900 1000 1100 1200 Frequency (MHz) Power Gain (dB) Ta = 25 °C Ta = -30 °C Ta = 85 °C Vcc = 2.7 V Reverse Isolation vs. Frequency and Voltage -60 -50 -40 -30 -20 -10 800 900 1000 1100 1200 Frequency (MHz) Reverse Isolation (dB) Vcc = 2.8 V Vcc = 2.7 V Vcc = 2.6 V Ta = 25 °C Input Return Loss vs. Frequency and Voltage -35 -30 -25 -20 -15 -10 800 900 1000 1100 1200 Frequency (MHz) Input Return Loss (dB) Vcc = 2.8 V Vcc = 2.7 V Vcc = 2.6 V Ta = 25 °C Reverse Isolation vs. Frequency and Temperature -60 -50 -40 -30 -20 -10 800 900 1000 1100 1200 Frequency (MHz) Reverse Isolation (dB) Ta = 25 °C Ta = -30 °C Ta = 85 °C Vcc = 2.7 V Input Return Loss vs. Frequency and Temperature -35 -30 -25 -20 -15 -10 800 900 1000 1100 1200 Frequency (MHz) Input Return Loss (dB) Ta = 25 °CTa = -30 °C Ta = 85 °C Vcc = 2.7 V

TYPICAL PERFORMANCE (CELL BAND) Output Return Loss vs. Frequency and Voltage -45 -40 -35 -30 -25 -20 -15 -10 800 900 1000 1100 1200 Frequency (MHz) Output Return Loss (dB) Vcc = 2.8 V Vcc = 2.7 V Vcc = 2.6 V Ta = 25 °C Output Return Loss vs. Frequency and Temperature -45 -40 -35 -30 -25 -20 -15 -10 800 900 1000 1100 1200 Frequency (MHz) Output Return Loss (dB) Ta = 25 °C Ta = -30 °C Ta = 85 °C Vcc = 2.7 V Noise Figure vs. Frequency 0.5 1.5 2.5 3.5 800 900 1000 1100 1200 Frequency (MHz) Noise Figure (dB) Output Power @ 1dB compression point Poutput (dBm) Gain (dB) F = 1010 MHz P1dB

Figure 2 PCS Band Application Circuit Configuration ELECTRICAL CHARACTERISTICS ( PCS BAND ) (Ta = +25oC, Vcc = 2.7V, Zs = ZL = 50Ω , tested in circuit shown in fig.2, unless otherwise specified) Symbol Parameters Test Conditions Min Typ Max Unit Freq. Frequency Range 2040 2135 MHz Vcc Supply Voltage 2.6 2.7 2.8 V Icc Current Consumption 3.3 4.3 5.3 mA P1dB Output Power at 1dB Compression Point F = 2085 MHz -1 dBm Gp Power Gain F = 2085 MHz 10 dB NF Noise Figure F = 2085 MHz 5 dB Isol. Reverse Isolation F = 2085 MHz 41 dB RLin Input Return Loss F = 2085 MHz 17 dB RLout Output Return Loss F = 2085 MHz 24 dB

TYPICAL PERFORMANCE (PCS BAND) Power Gain vs. Frequency and Voltage 1800 1900 2000 2100 2200 Frequency (MHz) Power Gain (dB) Vcc = 2.8 V Vcc = 2.7 V Vcc = 2.6 V Ta = 25 °C Power Gain vs. Frequency and Temperature 1800 1900 2000 2100 2200 Frequency (MHz) Power Gain (dB) Ta = 25 °CTa = -30 °C Ta = 85 °C Vcc = 2.7 V Reverse Isolation vs. Frequency and Voltage -60 -50 -40 -30 -20 -10 1800 1900 2000 2100 2200 Frequency (MHz) Reverse Isolation (dB) Vcc = 2.8 V Vcc = 2.7 V Vcc = 2.6 V Ta = 25 °C Input Return Loss vs. Frequency and Voltage -20 -18 -16 -14 -12 -10 1800 1900 2000 2100 2200 Frequency (MHz) Input Return Loss (dB) Vcc = 2.8 V Vcc = 2.7 V Vcc = 2.6 V Ta = 25 °C Reverse Isolation vs. Frequency and Temperature -60 -50 -40 -30 -20 -10 1800 1900 2000 2100 2200 Frequency (MHz) Reverse Isolation (dB) Ta = 25 °C Ta = -30 °C Ta = 85 °C Vcc = 2.7 V Input Return Loss vs. Frequency and Temperature -20 -18 -16 -14 -12 -10 1800 1900 2000 2100 2200 Frequency (MHz) Input Return Loss (dB) Ta = 25 °C Ta = -30 °C Ta = 85 °C Vcc = 2.7 V

TYPICAL PERFORMANCE (PCS BAND) Output Return Loss vs. Frequency and Voltage -45 -40 -35 -30 -25 -20 -15 -10 1800 1900 2000 2100 2200 Frequency (MHz) Output Return Loss (dB) Vcc = 2.8 V Vcc = 2.7 V Vcc = 2.6 V Ta = 25 °C Output Return Loss vs. Frequency and Temperature -45 -40 -35 -30 -25 -20 -15 -10 1800 1900 2000 2100 2200 Frequency (MHz) Output Return Loss (dB) Ta = 25 °C Ta = -30 °C Ta = 85 °C Vcc = 2.7 V Noise Figure vs. Frequency 2.5 3.5 4.5 5.5 1800 1900 2000 2100 2200 Frequency (MHz) Noise Figure (dB) Output Power @ 1dB compression point - 1 2 - 1 1 - 1 0 - 9- 8- 7- 6- 5- 4- 3- 2- 1 0 1 2 Poutput (dBm) Gain (dB) P1dB F = 2087.5 MHz

MIN. TYP . MAX MIN. TYP. MAX A 0.8 1.1 0.031 0.043 A1 0 0.1 0 0.004 A2 0.8 1 0.0031 0.039 b 0.15 0.3 0.006 0.012 c 0.1 0.18 0.004 0.007 D 1.8 2.2 0.071 0.088 E 1.15 1.35 0.045 0.59 e 0.65 0.025 H 1.8 2.4 0.071 0.094 Q 0.1 0.4 0.004 0.016 DIM.

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