10-46
RF2670
Rev A4 010820
10
IF AMPLIERS
Absolute M aximum Ratings
Parameter Ratings Unit
Supply Voltage -0.5 to +3.6 V
DC
Control Voltages -0.5 to +3.6 V
DC
Input RF Level +20 dBm
Operating Ambient Temperature -40 to +85 °C
Storage Temperature -40 to +150 °C
Parameter
Specification
Unit Condition
Min. Typ. Max.
Baseband Amplifiers
T=25°C, VCC=3.0V
Frequency Range 0.01 8 MHz Minimum frequency is dependent upon input
blocking cap, DC feedback cap, and gain
setting. Recommendedc omponents yields a
minimum frequency of less than 10kHz.
Voltage Gain 77 80 83 dB
Noise Figure 5 dB At maximum gain setting
35 dB At minimum gain setting
Input IP3 -65 dBm At maximum gain setting
+2 dBm At minimum gain setting
Output DC offset 0 25 mV
Gain Control Range 65 70 dB
Gain Control Voltage Range 1.2 2.0 V
Gain Control Sensitivity -0.08 dB/mV
VGA Output Voltage 500 mV
PP
VGA DC Output Voltage 1.7 V
Output P1dB 1 1.64 V
PP
Driving a 5kΩ load
RSSI Range 55 60 dB At maximum gain setting
RSSI Output Voltage Compli-
ance
0.5 to 2.4 V Maximum RSSI is 2.5V or V
CC
-0.3, which-
ever is less.
Input Impedance 1.5 2 2.5 kΩ Differential
Integrated Filters
Characteristics Five pole Bessel Five pole Bessel internal LPF.
Three pole external LPF.
Bandwidth 1, 2, 4, 8 MHz Selectable from 1MHz, 2MHz, 4MHz, and
8MHz.
Passband Ripple 1 dB
Group Delay 100 ns At 8MHz, increa sing as bandwidth
decreases.
UltimateRejection 50 80 dB
Data Amplifiers
Voltage Gain 100 dB
Bandwidth 8 MHz
Rise and Fall Time 2 5 ns 5pF Load
Logic High Output V
CC
-0.3V V Can sink/source 1mA and maintain these
logic levels.
Logic Low Out put 0.3 V Can sink/source 1mA and maintain these
logic levels.
Hysteresis 40 mV
Power Down Control
Logical Controls “ON” VCC-0.3V V Voltage supplied to the input
Logical Controls “OFF” 0.3 V Voltage supplied to the input
Control Input Impedance >1 MΩ
Turn on Time 10 13 ms With recommended DC feedback cap
(270nF)
Caution! ESD sensi t ive device.
RF Micro Devices believes the furnishedinformation is correct and accurate
at the time of this printing. However, RF Micro Devices reservesthe right to
make changes to its products without notice.RF Micro Devices does not
assume responsibility for the use of the described product(s).