User's Manual

MDS 05-4121A01, Rev. 02 TRM SB Integration Guide 17
Invisible place holder
Figure 8. Data Interface Connector
(As viewed from above)
Table 4. DATA INTERFACE Connector Pinouts
Pin
Number
Input/
Output Pin Description
1 IN/OUT Ground
2 OUT RF synthesizer lock detect signal
• High = locked (Radio ready for service)
• Low = Out-of-lock (Radio disabled)
• Raw / “unfiltered”
3IN TX Data—Transmit Data (payload) in normal operation
4 OUT CD—Carrier Detect
•
Low whenever RSSI exceeds the programmed CDR
threshold.
• Detects RF activity on the radio channel regarless of the
signals modulation type or data protocol.
5 IN/OUT Ground (Power and signal)
6 OUT RX Clock— Always applicable when receiving
• Goes from low to high at the center of each RX Data bit
(receive mode). Data will be valid on falling edge.
• Provided when transmitting if “ CLK RX ” is programmed
•
Goes from low to high to request each new TXD bit. Data
must be valid on falling edge.
• Continuously high when transceiver is in Configuration
Mode (J100, Pin 11 = Low)
7 IN/OUT Ground (Power and signal)
8 OUT TX Clock—Transmit Data Clock
•
Only applicable when “CLK TX” is programmed and TX
ON is asserted
• Clock goes from low to high to request each new TXD bit.
Data must be valid on falling edge.
• Continuously high when in Configuration Mode (J100,
Pin 11 = Low), or when “CLK RX” is selected