Texas Instruments TRF370 Series, Руководство пользователя

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DAC56x2 TRF370315
I I
Q
S0225-02
Q
I
I
Q
Q
R2
R2
R2
R2
5 V
5 V
R1
R1
R3
R3
R1
R1
R3
R3
DAC568x TRF370333
I I
S0226-02
I I
R5
R5
5 V
5 V
R6
R1
R1
R3
R3
Overview
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TYPICAL VALUES
R1 R2 R3
53 Ω 210 Ω 931 Ω
NOTE: A DAC interface calculator is available ( SLWC083 ).
Figure 4. 1.5-V Interface Network for 19.2 mA Full Scale
LOSS 1 dB 2 dB 3 dB 4 dB 5 dB
Pullup R1 115 115 115 115 115
Pulldown R3 634 634 634 634 634
Series R5 11 21 30 37.4 45.3
Shunt R6 187 165 147 130 118
Figure 5. 3.3-V Interface Network for 19.2 mA Full Scale
10 TRF370x Quadrature Modulator Evaluation Module SLWU062 – March 2010
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