ST7540TR STMicroelectronics, ST7540TR Datasheet - Page 16

• Manufacturer Part Number: ST7540TR
• Description: IC TXRX FSK POWER LINE 28-TSSOP
• Manufacturer: STMicroelectronics
• Type: Transceiverr

Specifications of ST7540TR

• Number Of Drivers/receivers: 1/1
• Voltage - Supply: 5 V ~ 9 V
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
• For Use With: 497-5485 - BOARD EVAL ST7540 PWR LINE TXRX
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Protocol: -
• Lead Free Status / Rohs Status: Compliant
• Other names: 497-5528-2

Functional description
6
6.1
6.2
16/44
Functional description
Carrier frequencies
ST7540 is a multi frequency device: eight programmable Carrier Frequencies are available
(see
Only one Carrier can be used a time. The communication channel could be varied during
the normal working Mode to realize a multi frequency communication.
Selecting the desired frequency in the Control Register the Transmission and Reception
filters are accordingly tuned.
Table 6. Channels List
1. Default value
Baud rates
ST7540 is a multi Baud rate device: four Baud Rate are available (See
Table 7. ST7540 mark and space tones frequency distance Vs. baud rate and deviation
1. Frequency deviation
2. Deviation = ∆F / (Baud Rate)
3. Deviation 0.5 not allowed
4. Default value
Table
Baud Rate [Baud]
6).
2400
1200
4800
600
(4)
FCarrier
F7
F0
F1
F2
F3
F4
F5
F6
(1)
∆F
1200
1200
2400
2400
4800
600
600
(1)
(Hz)
(4)
F (KHz)
82.05
132.5
110
60
66
72
76
86
Deviation
Table
1
0.5
0.5
0.5
1
1
1
(3)
8).
(2)
ST7540