MC33218ADWR2 Freescale Semiconductor, MC33218ADWR2 Datasheet - Page 7

• Manufacturer Part Number: MC33218ADWR2
• Description: IC VOICE SWITCH SPKPHONE 24-SOIC
• Manufacturer: Freescale Semiconductor

Specifications of MC33218ADWR2

• Function: Voice-Switched Speakerphone
• Interface: SPI Serial
• Voltage - Supply: 2.7 V ~ 6.5 V
• Current - Supply: 4.6mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: *
• Includes: Chip Disable
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power (watts): -
• Number Of Circuits: -
• Other names: MC33218ADWTR

SERIAL PORT CONTROL BITS
NOTE: 1. Bit B0 is the LSB for the volume control.
MOTOROLA ANALOG IC DEVICE DATA
B7, B6
B5
B4
B3–B0
(Note 1)
Bits
Data Ready
NOTES: 1. Maximum clock and data rate is 1.0 MHz. There is no required minimum rate.
Code
0000
1111
00
01
10
11
Data In
0
1
0
1
Clock
2. B7 is to be entered first, B0 last.
3. Data is entered on the clock rising edge.
4. Clock can continue to toggle after B0 is entered if Data Ready goes high before the clock’s next rising edge.
5. Upon power up, all bits are internally set to logic 0, by the POR pin.
6. Data Ready must go low before the first falling clock edge after the clock rising edge associated with B7.
Normal voice switched operation
Force to receive mode
Force to idle mode
Force to transmit mode
Attenuator range is 53 dB
Attenuator range is 27 dB
Microphone amplifier is active
Microphone amplifier is muted
Maximum receive volume
Minimum receive volume
This is not recommended due to possible noise problems.
See text for additional information.
t 1
t 3
B7
t 4
Freescale Semiconductor, Inc.
Function
For More Information On This Product,
B6
Figure 2. Serial Port Timing Diagram
B5
Go to: www.freescale.com
B4
MC33218A
t 5
B3
B2
B1
B0
É É É É
É É É É
t 2
7