MC33411B Motorola, MC33411B Datasheet - Page 10

• Manufacturer Part Number: MC33411B
• Description: (MC33411A/B) ANALOG CORDLESS PHONE BASEBAND
• Manufacturer: Motorola

NOTE: 1. All V CC pins must be within 0.5 V of each other.
10
Pin
10
11
12
13
14
Gnd Digital
Symbol/Type
MCU Clk Out
(Output)
(Input)
(Input)
Data
(I/O)
CLK
EN
Same as Pin 10.
Enable
Data
10
12
PIN FUNCTION DESCRIPTION
240
Tx PLL
V CC
1.0 A
1.0 A
240
Description
Tx PLL
V CC
MC33411A/B
1.0 k
Tx PLL
Tx PLL
V CC
V CC
Disable
Data
Tx PLL
V CC
13
Clk Out
(continued)
Enable Input for the MCU Interface section.
Hysteresis threshold is within 0.5 V of ground and
V CC . See text for proper waveform required at this
pin.
Clock Input for the MCU Interface section.
Hysteresis threshold is within 0.5 V of ground and
V CC . Data is written or read out on clock’s rising
edge. Maximum clock rate is 2.0 MHz.
Data I/O line for the MCU Interface section. Both
address and data are provided to/from this pin.
Input threshold is within 0.5 V of ground and V CC .
Data is written or read out on clock’s rising edge.
The microprocessor clock output is derived from the
reference oscillator and a programmable divider
with divide ratios of 2 to 312.5. It can be used to
drive a microprocessor and thereby reduce the
number of crystals required in the system design.
The driver has an internal resistor in series with the
output which can be combined with an external
capacitor to form a low–pass filter to reduce
radiated noise on the PCB. This output also
functions as the output for the counter test modes.
1) For the MC33411A the Clk Out can be disabled
via the MCU interface.
2) For the MC33411B this output is always active
(on).
Ground for the Data, MCU Clk Out, and F ref Out
digital Outputs. A direct connection to the ground
plane is strongly recommended.
MOTOROLA RF/IF DEVICE DATA
Description