ST7540 STMicroelectronics, ST7540 Datasheet - Page 31

• Manufacturer Part Number: ST7540
• Description: IC TXRX FSK POWER LINE 28-TSSOP
• Manufacturer: STMicroelectronics
• Type: Transceiverr

Specifications of ST7540

• 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
• Product: Modem Chip
• Data Rate: 4.8 KBd (Typ)
• Supply Voltage (max): 5.25 V or 13.5 V
• Supply Voltage (min): 4.75 V or 7.5 V
• Supply Current: 3.5 mA or 54 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• 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: Lead free / RoHS Compliant
• Other names: 497-5527-5

ST7540
Figure 20. Power line interface topology
Figure 21. Power line interface startup timing diagram
TX_OUT
RxTx
ALC
STEP NUMBER 16
T
CURRENT
VOLTAGE
RXTX
2.1V
LOOP
LOOP
0V
+
-
80pF typ.
D03IN1422
T
ST
PA_IN-
TX_OUT
Vss
Vsense
CL
PA_OUT
Vcc
PA_IN+
RCL
T
17
ALC
R3
R4
18
Z2
Z1
D03IN1408
R1
R2
31
Functional description
AC LINE
31/44