MICRF008_11 Datasheet, PDF (5/13 Pages) Micrel Semiconductor – QwikRadio Sweep-Mode Receiver

Micrel, Inc.
C_TH source impedance in Table 1 is represented by
(symbolic) resistor RSC in the MICRF008 Simplified
Block Diagram. The Programmable LPF (Low Pass
Filter) is also illustrated in the MICRF008 Simplified
Block Diagram.
MICRF008
SEL0
1
0
Programmable LPF
Bandwidth (Hz)
2400
4800
C_TH Source
Impedance (Ω)
440k
220k
Table 1. Nominal Characteristics
Programmable LPF Bandwidth
and CTH Source Impedance
Typical Characteristics
Supply Current
vs. Frequency
18
16 ^{TA = 25°C}
V_DD = 5V
14
12
10
8
6
4
250 300 350 400 450 500
FREQUENCY (MHz)
Supply Current
vs. Temperature
18
16 ^{f = 315MHz}
14 ^{VDD = 5V}
12
10
8
6
4
2
0
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
August 2008
5
M9999-080108