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PE43503 Datasheet(PDF) 5 Page - Peregrine Semiconductor |
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PE43503 Datasheet(HTML) 5 Page - Peregrine Semiconductor |
5 / 11 page Product Specification PE43503 Page 5 of 11 Document No. 70-0252-05 │ www.psemi.com ©2008-2009 Peregrine Semiconductor Corp. All rights reserved. Table 5. Control Voltage Table 6. Latch and Clock Specifications Table 8. Attenuation Word Truth Table Parallel Control Setting Attenuation Setting RF1-RF2 D6 D5 D4 D3 D2 L L L L L Reference I.L. L L L L H 1 dB L L L H L 2 dB L L H L L 4 dB L H L L L 8 dB H L L L L 16 dB H H H H H 31 dB Table 7. Parallel Truth Table State Bias Condition Low 0 to +1.0 Vdc at 2 µA (typ) High +2.6 to +5 Vdc at 10 µA (typ) Latch Enable Function X Shift Register Clocked ↑ Contents of shift register transferred to attenuator core Shift Clock ↑ X Attenuation Word Attenuation Setting RF1-RF2 D7 D6 D5 D4 D3 D2 D1 D0 (LSB) L L L L L L L L Reference I.L. L L L L L H L L 1 dB L L L L H L L L 2 dB L L L H L L L L 4 dB L L H L L L L L 8 dB L H L L L L L L 16 dB L H H H H H L L 31 dB Table 9. Serial Register Map Q7 Q6 Q5 Q4 Q3 Q2 Q1 Q0 D7 D6 D5 D4 D3 D2 D1 D0 Attenuation Word LSB (first in) MSB (last in) Bits must be set to logic low Attenuation Word is derived directly from the attenuation value. For example, to program the 13 dB state: Attenuation Word: Multiply by 4 and convert to binary → 4 *13 dB → 52 → 00110100 Serial Input: 00110100 Logo updated under non-rev change. Peregrine products are protected under one or more of the following U.S. Patents: http://patents.psemi.com |
Similar Part No. - PE43503_14 |
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Similar Description - PE43503_14 |
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