Z0220112VEGR3470 Zilog, Z0220112VEGR3470 Datasheet - Page 55
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Z0220112VEGR3470
Manufacturer Part Number
Z0220112VEGR3470
Description
IC MODEM 2400BPS DSP AFE 44-PLCC
Manufacturer
Zilog
Specifications of Z0220112VEGR3470
Data Format
V.21, V.22, V.23, Bell 103, Bell 212A
Baud Rates
2.4k
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Mounting Type
Surface Mount
Package / Case
44-LCC (J-Lead)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Tone Detectors
PS000904-0107
DTMFh_lev (0x1A1)
For example, to generate a 2100 Hz Answer Tone for 3.3 seconds at –10dBm:
1. Set location TONEGENA to
2. Set location DTMFL_LEV to
3. Set location DTMFH_LEV to
4. Set CONFIG register, bits 0–6 (MODE) to
5. Wait 3.3 seconds before setting CONFIG register, bits 0–6 (MODE) to
There are 16 tone detectors in the data pump. They are programmed by setting
up one word for each tone detector. There is one global threshold setting for all 16
tone detectors. The address for the tone detectors are as follows:
•
•
•
(STANDBY).
Tone Detector Coefficients—
(Tone0–Tone15)
Tone Detector Receive Levels—
(DTD0lev–DTD15lev)
Tone Detector Threshold–
High Band Tone (0x196)
*
Figure 10. Transmitting Tones
Transmitted Tones
03h
015FEh
0287h
0145
0
+
, disabling TONEGENB.
026h
–
.
0154h
.
Low Band Tone (0x196)
V.22BIS Data Pump with Integrated AFE
–
035h
1
(transmit tone).
*
DTMFl_lev (0x1A0)
0
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