MC33411B Motorola, MC33411B Datasheet - Page 13

• 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.
MOTOROLA RF/IF DEVICE DATA
Pin
29
30
31
32
33
34
35
36
Symbol/Type
(Output)
(Output)
(Output)
(Output)
Gnd PA
Rx Out
(Input)
(Input)
PAO+
PAO–
E Out
E cap
E In
PAI
Same as Pin 29.
PAI
32
E In
35
Audio
V CC
Audio
V CC
PIN FUNCTION DESCRIPTION
Audio
V CC
30 k
Description
V B
V B
40 k
V B
Audio
V CC
2.5 A
MC33411A/B
V B
Audio
V CC
Audio
Audio
V CC
V CC
34
E cap
33
Rx Audio
Output
36
Rx Out
29
PAO+
(continued)
Output of the second power amplifier. This amplifier
is set for unity inverting gain and is driven by PAO–.
Maximum swing is 2.9 V pp and maximum output
current is >5.0 mA peak. DC level is 1.5 V.
Output of the first power amplifier. Its gain is set
with external resistors and capacitors from this pin
to PAI. Output capability is the same as Pin 28.
Ground pin for the power amplifier outputs. A direct
connection to a ground plane is strongly
recommended.
Inverting input of the power amplifier. Gain and
frequency response are set with external resistors
and capacitors from this pin to the audio source and
to PAO–.
Expander output. This output is sensitive to load
capacitance. Maximum output signal level is
E cap is the expander rectifier filter capacitor pin.
Connect an external filter capacitor between V CC
audio and E cap . The recommended capacitance
range is 0.1 to 1.0 F. The suggested value is
0.47 F.
The expander input pin is internally biased and has
input impedance of 30 k .
Rx Out is the Rx audio output. An internal low–pass
filter has a –3.0 dB bandwidth of 4.0 kHz.
2.5 V pp . Maximum output current is >1.0 mA.
Description
13