MC33215 Просмотр технического описания (PDF) - Motorola => Freescale
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MC33215 Datasheet PDF : 20 Pages
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Freescale SMeCm3i3c2o15nductor, Inc.
FEATURES
Line Driver and Supply
• AC and DC Termination of Telephone Line
• Adjustable Set Impedance for Real and Complex
Termination
• Efficient Supply Point for Loudspeaker Amplifier and
Peripherals
• Two Stabilized Supply Points for Handset and Base
Microphones
• Separate Supply Arrangement for Handset and
Speakerphone Operation
Handset Operation
• Transmit and Receive Amplifiers
• Differential Microphone Inputs
• Sidetone Cancellation Network
• Line Length AGC
• Microphone and Earpiece Mute
• Separate Input for DTMF and Auxiliary Signals
• Parallel Operation Down to 4.0 mA of Line Current
Speakerphone Operation
• Handsfree Operation via Loudspeaker and Base
Microphone
• Integrated Microphone and Loudspeaker Amplifiers
• Differential Microphone Inputs
• Loudspeaker Amplifier can be Powered and Used
Separately from the Rest of the Circuit
• Integrated Switches for Smooth Switch–Over from
Handset to Speakerphone Operation
• Signal and Background Noise Monitoring in Both
Channels
• Adjustable Switching Depth for Handsfree Operation
• Adjustable Switch–Over and Idle Mode Timing
• Dial Tone Detector in the Receive Channel
Figure 1. Pin Connections
52 51 50 49 48 47 46 45 44 43 42 41 40
1 SLB
2 REG
3 SLP
4 MFI
5 HM1
6 HM2
7 BM2
8 BM1
9 VDD
10 TSA
11 TSE
12 TBN
13 MUT
TQFP–52
LSF 39
BVO 38
PPL 37
LSI 36
VOL 35
SWD 34
REF 33
AGC 32
Gnd 31
RLS 30
RSA 29
RSE 28
RBN 27
14 15 16 17 18 19 20 21 22 23 24 25 26
(Top View)
1 VCC
2 VLN
3 VHF
4 VMC
5 SLB
6 REG
7 SLP
PGD 42
LSO 41
VLS 40
LSB 39
LSF 38
BVO 37
PPL 36
8 MFI
LSI 35
9 HM1
VOL 34
10 HM2
11 BM2
12 BM1
SWD 33
SDIP–42
REF 32
AGC 31
13 VDD
14 TSA
15 TSE
Gnd 30
RLS 29
RSA 28
16 TBN
RSE 27
17 MUT
RBN 26
18 SPS
RXI 25
19 PRS
GRX 24
20 SWT
21 LSM
RXO 23
RXS 22
(Top View)
2
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Go to: www.freescale.com
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