MC13142 Ver la hoja de datos (PDF) - Motorola => Freescale
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MC13142 Datasheet PDF : 16 Pages
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MC13142
PIN FUNCTION DESCRIPTION
Pin
16 Pin
Equivalent Internal Circuit
SOIC
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 1
Symbol
EN
(20 Pin LQFP)
VCC
1
40 k
EN
2.0 VBE
Description
Enable, E Osc
In SO–16, both enables, (for the Oscillator/LO Buffer and
LNA/Mixer) are bonded to Pin 1. Enable by pulling up to
VCC or to greater than 2.0 VBE.
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ VCC
ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 70k
ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 2.0VBE
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 2
RFin
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 3
VEE
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 16
RFout
16
RFout
VCC
600
Vref2
VEE
2
RFin
3
VEE
Vref3
2.0 mA
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 4
Osc E
4
ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 5
Osc B
6
Osc C
Osc E
ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 10
ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 5
ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ OscB
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 6
VCC
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 8
VCC
7.6 k
6
Osc C
6
VEE
VCC
VCC
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 7
LO Buff
7
LO Buf
8
VCC
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ VEE
1.5
mA
VEE
1.0
mA
RF Input
The input is the base of an NPN low noise amplifier.
Minimum external matching is required to optimize the
input return loss and gain.
VEE – Negative Supply
VEE pin is taken to an ample dc ground plane through a
low impedance path. The path should be kept as short
as possible. A two sided PCB is implemented so that
ground returns can be easily made through via holes.
RF Output
The output is from the collector of the LNA; it is internally
biased with a 600 Ω resistor to VCC. As shown in the 926
MHz application receiver the output is conjugately
matched with a shunt L, and series L and C network.
On–Board VCO Transistor
The transistor has the emitter, base and collector + VCC
pins available. Internal biasing which is compensated for
stability over temperature is provided. It is recommended
that the base pin is pulled up to VCC through an RFC
chosen for the particular oscillator center frequency. The
application circuit shows a modified Colpitts or Clapp
oscillator configuration and its design is discussed in
detail in the application section.
Supply Voltage (VCC)
Two VCC pins are provided for the Local Oscillator and
LO Buffer Amplifier. The operating supply voltage range
is from 2.7 Vdc to 6.5 Vdc. In the PCB layout, the VCC
trace must be kept as wide as feasible to minimize
inductive reactances along the trace. VCC should be
decoupled to VEE at the IC pin as shown in the
component placement view.
Local Oscillator Buffer
This is a buffered output providing –16 dBm
(50 Ω termination) to drive the fin pin of a PLL
synthesizer. Impedance matching to the synthesizer may
be necessary to deliver the optimal signal and to
improve the phase noise performance of the VCO.
4
MOTOROLA RF/IF DEVICE DATA
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