ST-1000D SM R 1.1B SMARTRUNK SYSTEMS, INC.
11
4.3.4.
Automatic Transmit Power
Control
The RF power detector (D2) detects
transmitted feedback then sends
the readout to audio processor U8.
The special firmware module
compares the transmitted power
against the referred level stored on
current channel memory adjusting
the power control level generated
as reference by one DAC output on
the same processor (U8) then
amplified by U3 (MCP6241U)
controlling the gate current on Q1
and Q17.
Notes:
Summary of Contents for ST-1000D
Page 5: ...2 ST 1000 EXPLODED VIEW...
Page 7: ...Notes...
Page 18: ...11 ST 1000D COMPONENT LOCATOR 11 1 ST 1000D TOP LAYER COMPONENTS LOCATION...
Page 19: ...ST 1000D SM R 1 1B SMARTRUNK SYSTEMS INC 19 11 2 ST 1000D BOTTOM LAYER COMPONENTS LOCATION...
Page 21: ...ST 1000D SM R 1 1B SMARTRUNK SYSTEMS INC 21 12 2 ST 1000 BOTTOM LAYER PCB LAYOUT...
Page 22: ...ST 1000D SM R 1 1B SMARTRUNK SYSTEMS INC 22 12 3 ST 1000D PCB GROUND LAYER...
Page 23: ...ST 1000D SM R 1 1B SMARTRUNK SYSTEMS INC 23 12 4 ST 1000D PCB POWER LAYER...
