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R2000 Datasheet(PDF) 15 Page - List of Unclassifed Manufacturers

Part # R2000
Description  Indy® R2000 Reader Chip (IPJ-R2000) Electrical, Mechanical, & Thermal Specification
PDF  75 Pages
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Indy® R2000 Electrical, Mechanical, & Thermal Specification
Revision 2.0, Copyright © 2015, Impinj, Inc.
15
Table 15: Indy R2000 Reader Chip Clock Output, DACs, and ADCs
Parameter
Min.
Typ.
Max.
Unit
Conditions
Maximum load
capacitance on CLK_out
10
10
10
10
10
pF
pF
pF
pF
pF
Output clock rate:
48 MHz
24 MHz
12 MHz
6 MHz
3 MHz
Antenna input detection
range
0.3
2.7
V
Antenna input detection
resolution
8
bits
Temperature sensor range
0.3
2.7
V
Temperature sensor
resolution
8
bits
PA bias output range
0.3
2.7
V
PA bias resolution
8
bits
SD DAC
implementation
PA regulator ctrl output
range
0.3
2.7
V
PA regulator ctrl resolution
8
bits
SD DAC
implementation
Table 16: Indy R2000 Reader Chip Digital Interface
Parameter
Min.
Typ.
Max.
Units
Conditions
Input high voltage
1.5
Vdd
V
Input low voltage
0
0.9
V
Output high voltage
2.3
Vdd
V
Output low voltage
0
0.7
V
Input leakage current
-10
10
µA
Input pin capacitance
10
pF
5
Functional Description
The transmitter supports both in-phase quadrature (IQ) vector modulation and polar modulation. The direct IQ up-
conversion is intended for single sideband amplitude shift keying (SSB-ASK) and phase reversal amplitude shift
keying (PR-ASK). The polar modulation is intended for double sideband amplitude shift keying (DSB-ASK). In both
cases, the signals are generated in the digital domain and converted to analog signals by sigma-delta digital-to-
analog converters (DACs) followed by reconstruction filters. The integrated power amplifier can be operated in three
different modes:
Class F with high output power and without internal amplitude modulation (AM)
The integrated power amplifier acts as a driver for an external power amplifier. The external power amplifier performs
the amplitude modulation, but it does require an external modulator. This is likely to be done with DSB and not PR-
ASK.
Class F with drain modulation using an external modulator
Class A required for SSB-ASK and PR-ASK
An optional linear external power amplifier can be used to increase the output power to the maximum allowed level.
The Indy R2000 reader chip performs the baseband encoding and pulse-shaping via a lookup table to minimize
latency. In the case of SSB-ASK transmission, a Hilbert filter shapes the baseband signal to create a complex IQ



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