CMX625D5 CML Microcircuits, CMX625D5 Datasheet - Page 15

• Manufacturer Part Number: CMX625D5
• Description: ISDN TA POTS Interface
• Manufacturer: CML Microcircuits

ISDN TA POTS Interface
When bit 5 of the MODE Register is set to ‘0’, these blocks generate single or dual tones from the range
shown in the tables on the following pages. Bit 6 of the MODE Register is then used to enable or disable
the block’s output to the Tx Signal Control, RING and TONEFSK outputs. There are four tone fields
addressed by bits 0 and 1 of the MODE Register.
Tone Field 0, MODE Register bit 1 and bit 0 = ‘0’ and ‘0’ respectively.
NOTE: * These outputs are routed to the RING digital output instead of the TONEFSK output. Any
single tone output level at TONEFSK output is 0dBm.
Tone Field 1, MODE Register bit 1 and bit 0 = ‘0’ and ‘1’ respectively
TX TONES Register Bits 4-7
D7
2000 Consumer Microcircuits Limited
TX TONES Register Bits 4-7
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
D7
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
D6
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
D6
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
D5
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D5
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D4
D4
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Frequency
Frequency
0 = OFF
0 = OFF
252.4
268.7
285.3
315.5
330.5
375.2
404.3
468.0
495.8
520.6
548.0
562.8
578.4
595.0
612.5
(Hz)
(Hz)
120
150
154
250
300
350
360
367
375
380
383
400
450
475
480
D3
D3
TX TONES Register Bits 0-3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
15
TX TONES Register Bits 0-3
D2
D2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
D1
D1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D0
D0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Frequency
Frequency
0 = OFF
0 = OFF
* 17.1
* 20.5
* 24.9
* 34.1
* 41.0
* 51.2
262.9
293.6
348.2
392.6
587.2
1600
1633
1827
(Hz)
(Hz)
330
416
420
425
433
440
450
460
480
500
600
620
720
930
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CMX625
D/625/1