Datasheet
MC33411A/B
9
MOTOROLA RF/IF DEVICE DATA
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PIN FUNCTION DESCRIPTION (continued)
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Description
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Description
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Symbol/Type
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Pin
3 Rx PLL V
CC
(Input)
3
Rx PLL
Section
V
CC
100.0110
Supply pin for the Rx PLL section. Allowable range
is 2.7 to 5.5 V and must be within 0.5 V of all other
V
CC
pins. Good bypassing is required and isolation
with a 10 Ω resistor is recommended.
4 Rx PD
(Output)
Rx PD
4
100/
400 µA
Rx PLL V
CC
100/
400 µA
Rx
PLL
V
CC
125
125
to Filter
Rx Phase Detector Output. The output either
sources or sinks current, or neither, depending on
the phase difference of the phase detector input
signals. During lock, very narrow pulses with a
frequency equal to the PLL reference frequency are
present. Output current is either ±100 µA or
±400 µA, selectable with bit 2/20.
5 PLL Gnd Ground pin for the PLL section. A direct connection
to a ground plane is strongly recommended.
6 Tx PD
(Output)
Same as Pin 4, except powered from Tx PLL V
CC
. Tx Phase Detector Output. Description same as for
Pin 4, except bit 1/20 controls the current level.
7 Tx PLL V
CC
(Input)
7
Tx PLL
Section,
MCU Serial
Interface,
Reference
Oscillator
V
CC
100.0110
Supply pin for the Tx PLL section, MCU Serial
Interface, MCU Clock Counter, and the Reference
Oscillator. Allowable range is 2.7 to 5.5 V and must
be within 0.5 V of all other V
CC
pins. Good
bypassing is required and isolation with a 10 Ω
resistor is recommended.
8 FTx
(Input)
Same as Pin 2. Receives the signal from the external 64/65 or
128/129 prescaler. DC bias is at 1.5 V.
9 FTx MC
(Output)
FTx MC
9
Tx PLL V
CC
Current Mode
Tx PLL V
CC
Voltage Mode
100 µA
100 µA
Modulus Control Output for the Tx PLL section. Can
be set to output in a current mode or a voltage
mode, selectable with bit 3/16.
NOTE: 1. All V
CC
pins must be within ±0.5 V of each other.
ARCHIVE INFORMATION
ARCHIVE INFORMATION
Fr
eescale S
emiconduct
or
, I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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