15 8 Bit-11 16 21 Bit-4
17 9 Bit-9 18 22 Bit-5
19 10 Bit-8 20 23 Bit-6
21 11 Bit-7 22 24 Ground
23 12 Bit-12 24 25 Bit-13
25 13 Inhb 26
-- --
First configure the IFD pins:
• Pins 1 and 24 are power supply grounds, and are connected with wirewrap wire to the
nearby ground posts.
• Pins 2 and 3 supply +5 V and +24 V to the STALO. Wire-wrap them to the internal
power posts.
• Supply the STALO and DAFC power externally through the terminal block on the DAFC.
• Install 16 jumpers installed to connect the Control and Status lines, that is, pins 4, 6–13,
18–23, and 25.
• H3 and H4 are removed because we use pinmap uplink protocol.
• Remove H2 because we us an x1 on-board crystal
The STALO has an output frequency range from 5200 MHz ... 6020 MHz in 100 KHz steps. In
this example, we assume that we need an AFC frequency span of 5580 MHz ... 5600MHz.
This can be done with the following setups from the Mb section:
AFC span– [-100%,+100%] maps into [ 3800 , 4000 ]
AFC format– 0:Bin, 1:BCD, 2:8B4D: 0, ActLow: NO
AFC uplink protocol– 0:Off, 1:Normal, 2:PinMap :2
PinMap Table (Type 31 for GND, 30 for +5)
Pin01:GND Pin02:GND Pin03:GND Pin04:GND Pin05:GND
Pin06:02 Pin07:03 Pin08:11 Pin09:09 Pin10:08
Pin11:07 Pin12:12 Pin13:GND Pin14:GND Pin15:GND
Pin16:GND Pin17:GND Pin18:00 Pin19:01 Pin20:10
Pin21:04 Pin23:06 Pin24:GND Pin25:13
FAULT status pin (0:None): 4, ActLow: NO
We map the AFC interval into the numeric span 3800–4000, and choose the Bin (simple
binary) encoding format. The frequency limits match the desired values:
5200MHz + ( 3800 × 100KHz ) = 5580MHz
5200MHz + (4000 × 100KHz ) = 5600MHz
The Inhb line is held low, and fault status is input on Pin 4. All pins that are not directly
controlled by the software uplink (for example, power pins and unused pins) are set to GND
in the setup table.
RVP900 User Guide M211322EN-J
78
To Next Page
Loading...