ATR2406-PNQG Atmel, ATR2406-PNQG Datasheet - Page 13

• Manufacturer Part Number: ATR2406-PNQG
• Manufacturer: Atmel

Specifications of ATR2406-PNQG

• Operating Temperature Classification: Commercial
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.6V
• Lead Free Status / Rohs Status: Compliant

7.7
7.8
7.9
Figure 7-2.
4779K–ISM–06/06
Control Signals
Serial Programming Bus
3-wire BUS Timing
ENABLE
CLOCK
DATA
3-wire Bus Protocol Timing Diagram
TL
The various transceiver functions are activated by the following control signals. A timing pro-
posal is given in
Table 7-7.
The transceiver is programmed by the SPI (CLOCK, DATA and ENABLE).
After setting enable signal to low condition, on the rising edge of the clock signal, the data is
transferred bit by bit into the shift register, starting with the MSB-bit. When the enable signal
has returned to high condition, the programmed information is active. Additional leading bits
are ignored and there is no check made how many clock pulses arrived during enable low
condition.
The programming of the transceiver is done by a 16 bit or 25 bit data word (for the RX clock
recovery mode).
Table 7-8.
Signal
PU_REG
PU_TRX
RX_ON
TX_ON
nOLE
Description
Clock period
Set time data to clock
Hold Time data to clock
Clock pulse width
Set time enable to clock
Hold time enable to data
Time between two protocols
Control Signals – Functions
3-wire Bus Protocol Table
Figure 7-3 on page 14
Functions
Activates AUX voltage regulator and the VCO voltage regulator supplying the
complete transceiver
Activates RX/TX blocks
Activates RX circuits: DEMOD, IF AMP, IR MIXER
Activates TX circuits: PA, RAMP GEN, Starts RAMP SIGNAL at RAMP_OUT
Disables open loop mode of the PLL
TPER
TS
TC
TH
Symbol
TPER
TEC
TH
TC
TS
TT
TL
TEC
Minimum Value
100
100
250
20
20
60
TT
0
ATR2406
Unit
ns
ns
ns
ns
ns
ns
ns
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