EK43702-01 Peregrine Semiconductor, EK43702-01 Datasheet - Page 5

• Manufacturer Part Number: EK43702-01
• Description: KIT EVAL FOR PE43702 RF DSA
• Manufacturer: Peregrine Semiconductor
• Series: UltraCMOS™, HaRP™r
• Type: Attenuatorr

Specifications of EK43702-01

• Frequency: 9kHz~ 4GHz
• For Use With/related Products: PE43702
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 1046-1005

PE43702
Product Specification
Table 5. Control Voltage
Table 6. Latch and Clock Specifications
Table 7. Parallel Truth Table
Table 8. Serial Register Map
MSB (last in)
Attenuation Word is derived directly from the attenuation value. For example, to program the 12.5 dB state:
Document No. 70-0244-04 │ www.psemi.com
D6
Latch Enable
H
H
L
L
L
L
L
L
L
Q7
D7
0
↑
D5
H
H
L
L
L
L
L
L
L
State
Attenuation Word: Multiply by 4 and convert to binary → 4 * 12.5 dB → 50 → 00110010
Serial Input: 00110010
High
Low
Q6
D6
Parallel Control Setting
D4
H
H
L
L
L
L
L
L
L
Shift Clock
Q5
D5
D3
H
H
L
L
L
L
L
L
L
Attenuation Word
X
↑
Q4
D4
D2
H
H
L
L
L
L
L
L
L
+2.6 to +5 Vdc at 10 µA (typ)
0 to +1.0 Vdc at 2 µA (typ)
D1
transferred to attenuator core
H
H
L
L
L
L
L
L
L
Bias Condition
Q3
D3
Contents of shift register
Shift Register Clocked
D0
H
H
L
L
L
L
L
L
L
Function
Q2
D2
Reference I.L.
Attenuation
RF1-RF2
31.75 dB
Setting
0.25 dB
0.5 dB
16 dB
1 dB
2 dB
4 dB
8 dB
Q1
D1
LSB (first in)
Q0
D0
Table 9. Serial Attenuation Word Truth Table
D7
L
L
L
L
L
L
L
L
L
©2008-2009 Peregrine Semiconductor Corp. All rights reserved.
Bit must be set to logic low
D6
H
H
L
L
L
L
L
L
L
D5
H
H
L
L
L
L
L
L
L
Attenuation Word
D4
H
H
L
L
L
L
L
L
L
D3
H
H
L
L
L
L
L
L
L
D2
H
H
L
L
L
L
L
L
L
D1
H
L
L
L
L
L
L
L
H
(LSB)
D0
H
H
L
L
L
L
L
L
L
Reference I.L.
Attenuation
Page 5 of 11
RF1-RF2
31.75 dB
Setting
0.25 dB
0.5 dB
16 dB
1 dB
2 dB
4 dB
8 dB