ST7538Q STMicroelectronics, ST7538Q Datasheet - Page 16

• Manufacturer Part Number: ST7538Q
• Description: IC TXRX FSK POWER LINE 44-TQFP
• Manufacturer: STMicroelectronics
• Type: Transceiverr

Specifications of ST7538Q

• Number Of Drivers/receivers: 1/1
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 44-TQFP Exposed Pad, 44-eTQFP, 44-HTQFP, 44-VQFP
• For Use With: 497-5484 - BOARD EVAL ST7538 PWR LINE TXRX
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Protocol: -
• Other names: 497-5525

Functional description
5.3
16/44
Mark and space frequencies
Mark and space communication frequencies are defined by the following formula:
F ("0") = FCarrier + [
F ("1") = FCarrier - [
∆F is the Frequency Deviation.
With Deviation = “0.5” the difference in terms of frequency between the mark and space
tones is half the Baudrate value (∆F = 0.5*BAudrate). When the Deviation = “1” the
difference is the Baudrate itself (∆F = Baudrate). The minimal Frequency Deviation is
600Hz.
Table 7. ST7538Q synthesized frequencies
Frequency
Carrier
(KHz)
60
66
Baud
Rate
1200
2400
4800
1200
2400
4800
600
600
Deviation
∆F
∆F
0.5
0.5
0.5
0.5
0.5
0.5
]/2
]/2
--
--
1
1
1
1
1
1
1
1
Frequency [Hz]
(Clock=16MHz)
59733
59733
59408
59408
58757
58757
57617
65755
65755
65430
65430
64779
64779
63639
“1”
Exact
60221
60221
60547
60547
61198
61198
62337
66243
66243
66569
66569
67220
67220
68359
“0”
Frequen
Carrier
(KHz)
82.05
cy
86
Baud
Rate
1200
2400
4800
1200
2400
4800
600
600
Deviation
0.5
0.5
0.5
0.5
0.5
0.5
--
--
1
1
1
1
1
1
1
1
Frequency [Hz]
(Clock=16MHz)
81706
81706
81380
81380
80892
80892
79590
85775
85775
85449
85449
84798
84798
83659
“1”
Exact
ST7538Q
82357
82357
82682
82682
83171
83171
84473
86263
86263
86589
86589
87240
87240
88379
“0”