ml2722 Sirenza Microdevices, ml2722 Datasheet - Page 21

• Manufacturer Part Number: ml2722
• Description: 900mhz Low-if 1.5mbps Fsk Transceiver
• Manufacturer: Sirenza Microdevices

DS2722-F-06
B15 (MSB) / DB13
B15 (MSB) / DB13
B0 (LSB) / ADB0
B0 (LSB) / ADB0
B14 / DB12
B13 / DB11
B12 / DB10
B14 / DB12
B13 / DB11
B12 / DB10
DATA BIT
B11 / DB9
B10 / DB8
B1 / ADB1
DATA BIT
B11 / DB9
B10 / DB8
B1 / ADB1
B9 / DB7
B8 / DB6
B7 / DB5
B6 / DB4
B5 / DB3
B4 / DB2
B3 / DB1
B2 / DB0
B9 / DB7
B8 / DB6
B7 / DB5
B6 / DB4
B5 / DB3
B4 / DB2
B3 / DB1
B2 / DB0
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
CHQ11
CHQ10
NAME
NAME
RXCL
CHQ9
CHQ8
CHQ7
CHQ6
CHQ5
CHQ4
CHQ3
CHQ2
CHQ1
CHQ0
TXCL
ADR1
ADR0
ADR1
ADR0
TPC
QPP
LOL
RD0
Table 5. Register 1 – Channel Frequency Register
Table 4. Register 0 -- PLL Configuration Register
Channel Frequency select bits
PLL Mode in Normal Receive
Reference Frequency Select
PLL Charge Pump Polarity
Transmit Power Control
PLL Frequency Shift
Transmit Test Mode
MSB Address Bit
MSB Address Bit
LSB Address Bit
LSB Address Bit
DESCRIPTION
DESCRIPTION
Operation
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
FINAL DATASHEET
0: TPC pin high impedance
1: TPC pin pulled to ground
0: FSK modulation in Transmit mode
1: CW (no modulation in Transmit mode)
0: LO shift is 0 Hz for Transmit, 1.024MHz for Receive
1: LO shift is 1.024MHz for Transmit, 0Hz for Receive
0: PLL open loop during Receive
1: PLL closed loop during Receive
0: 6.144MHz nominal reference frequency
1: 12.288MHz nominal reference frequency
0: Freq. sig. < freq. ref.; Charge pump sources current
1: Freq. sig. < freq. ref.; Charge pump sinks current
ADR1 = 0
ADR0 = 0
ADR1 = 0
ADR0 = 1
Divide ratio = f
Set all bits to 0 (zero)
Set all bits to 0 (zero)
USE
USE
DECEMBER 2005
c
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ML2722
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