MC13159DTB 查看數據表（PDF） - Motorola => Freescale
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MC13159DTB Datasheet PDF : 8 Pages
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Pin
Symbol
1 Mix Decoup
16 Mixin
2
VCC
3
LOin
MC13159
PIN FUNCTION DESCRIPTION
Internal Equivalent Circuit
Description
VCC
1.0 k
VCC
1.0 k
Mixer Decoupling
Mixer decoupling pin. 220 pF is decoupled to the RF
ground. This pin also can be used for differential input
with Mixin.
16
1
Mixer Input
Input impedance is about 400 Ω at 240 MHz.
Single–ended matching section at 240 MHz is
referenced at application circuit.
VCC
VCC
1.0 k
3
Supply Voltage
Supply voltage range range is from 2.7 Vdc to
5.5 Vdc. 1.0 nF of decoupling capacitor is placed
directly at this pin to reduce the floor noise.
Local Oscillator Input
Connected to external local oscillator. Input
impedance is about 900 Ω at 230 MHz.
4 RSSI
5
LIMDec2
7
LIMDec1
8
LIMin
6
LIMout
VCC
VCC
4
15 k
RSSI
The RSSI current creates a voltage drop across an
internal 15 kΩ resistor.
VCC
VCC VCC
8
330
7
VCC
5
Limiter Decoupling
Limiter decoupling pins. Decoupling capacitors are
connected to the RF ground, and one is placed
between Dec1 and Dec2.
Limiter Input
The input impedance is 330 Ω; it matches the
330 input resistance of a 10.7/10.8 MHz ceramic filter.
VCC
VCC
10
6
800 µA
Limiter Output
The output level is about 0.5 Vpp.
MOTOROLA ANALOG IC DEVICE DATA
5
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