AD8156ABCZ datasheet(18/20 Pages) AD

18 / 20 page

AD8156

Rev. 0 | Page 18 of 20

Table 12. Broadcast Connectivity Programming, A[3:0] = b1000

Address Pins

Data Pins

Description

D2 = 1 enables all outputs. D[1:0] = b00 connects IN0 to all outputs.

D2 = 1 enables all outputs. D[1:0] = b11 connects IN3 to all outputs.

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

Description (Output Current = 2 mA + (2 mA × D[3:0])

D[3:0] = b0100 sets current of all outputs to 2 mA + (2 mA × 4) = 10 mA.

D[3:0] = b1101 sets current of all outputs to 2 mA + (2 mA × 13) = 28 mA.

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

Description (Gain(f) = D[3:0]⁄15 × 40 log10(f⁄0.83 GHz)), assume f = 2.25 GHz

D[3:0] = b0100 sets all input EQ = (4/15 × 40 log10(2.25 GHz/0.83 GHz)) = 4.6 dB.

D[3:0] = b1101 sets all input EQ = (13/15 × 40 log10(2.25 GHz/0.83 GHz)) =14.95 dB.

D[3:0] = b0000 sets all input EQ = (0/15 × 40 log10(2.25 GHz/0.83 GHz)) = 0 dB.

Table 15. Individual Input EQ Programming, A[3:2] = b11

Address Pins

Data Pins

Description (Gain(f) = D[3:0]⁄15 × 40log10(f⁄0.83 GHz)), assume f = 2.25 GHz

A[1:0] = b00 selects IN0.

D[3:0] = b0100 sets EQ = (4/15 × 40 log10(2.25 GHz/0.83 GHz)) = 4.6 dB.

A[1:0] = b01 selects IN1.

D[3:0] = b1101 sets EQ = (13/15 × 40 log10(2.25 GHz/0.83 GHz)) = 14.95 dB.

A[1:0] = b10 selects IN2.

D[3:0] = b1111 sets EQ = (15/15 × 40 log10(2.25 GHz/0.83 GHz)) = 17.25 dB.

A[1:0] = b11 selects IN3.

D[3:0] = b0000 sets EQ = (0/15 × 40 log10(2.25 GHz/0.83 GHz)) = 0 dB.

AD8156ABCZ датащи(PDF) 18 Page - Analog Devices