Datasheet

AD8156
Rev. 0 | Page 18 of 20
Table 12. Broadcast Connectivity Programming, A[3:0] = b1000
Address Pins Data Pins
A3 A2 A1 A0 D3 D2 D1 D0 Description
1 0 0 0 0 1 0 0 D2 = 1 enables all outputs. D[1:0] = b00 connects IN0 to all outputs.
1 0 0 0 0 1 1 1 D2 = 1 enables all outputs. D[1:0] = b11 connects IN3 to all outputs.
1 0 0 0 0 0 1 0
D2 = 0 disables all outputs. D[1:0] = b10 connects IN2 to all outputs, but all
outputs are disabled.
Table 13. Broadcast Output Level Programming, A[3:0] = b1001
Address Pins Data Pins
A3 A2 A1 A0 D3 D2 D1 D0 Description (Output Current = 2 mA + (2 mA × D[3:0])
1 0 0 1 0 1 0 0 D[3:0] = b0100 sets current of all outputs to 2 mA + (2 mA × 4) = 10 mA.
1 0 0 1 1 1 0 1 D[3:0] = b1101 sets current of all outputs to 2 mA + (2 mA × 13) = 28 mA.
1 0 0 1 0 0 0 0 D[3:0] = b0000 sets current of all outputs to 2 mA + (2 mA × 0) = 2 mA.
Table 14. Broadcast Equalization (EQ) Programming, A[3:0] = b1011
Address Pins Data Pins
A3 A2 A1 A0 D3 D2 D1 D0 Description (Gain(f) = D[3:0]⁄15 × 40 log
10
(f⁄0.83 GHz)), assume f = 2.25 GHz
1 0 1 1 0 1 0 0 D[3:0] = b0100 sets all input EQ = (4/15 × 40 log
10
(2.25 GHz/0.83 GHz)) = 4.6 dB.
1 0 1 1 1 1 0 1 D[3:0] = b1101 sets all input EQ = (13/15 × 40 log
10
(2.25 GHz/0.83 GHz)) =14.95 dB.
1 0 1 1 0 0 0 0 D[3:0] = b0000 sets all input EQ = (0/15 × 40 log
10
(2.25 GHz/0.83 GHz)) = 0 dB.
Table 15. Individual Input EQ Programming, A[3:2] = b11
Address Pins Data Pins
A3 A2 A1 A0 D3 D2 D1 D0 Description (Gain(f) = D[3:0]⁄15 × 40log
10
(f⁄0.83 GHz)), assume f = 2.25 GHz
1 1 0 0 0 1 0 0
A[1:0] = b00 selects IN0.
D[3:0] = b0100 sets EQ = (4/15 × 40 log
10
(2.25 GHz/0.83 GHz)) = 4.6 dB.
1 1 0 1 1 1 0 1
A[1:0] = b01 selects IN1.
D[3:0] = b1101 sets EQ = (13/15 × 40 log
10
(2.25 GHz/0.83 GHz)) = 14.95 dB.
1 1 1 0 1 1 1 1
A[1:0] = b10 selects IN2.
D[3:0] = b1111 sets EQ = (15/15 × 40 log
10
(2.25 GHz/0.83 GHz)) = 17.25 dB.
1 1 1 1 0 0 0 0
A[1:0] = b11 selects IN3.
D[3:0] = b0000 sets EQ = (0/15 × 40 log
10
(2.25 GHz/0.83 GHz)) = 0 dB.