AMIS-50050 Datasheet, PDF (7/10 Pages) AMI SEMICONDUCTOR – Spread Spectrum Baseband Controller

AMIS-50050: Spread Spectrum Baseband Controller
Wireless Products
Data Sheet
5.4 AC Characteristics
Table 7: AC Characteristics
Symbol
Parameter
Min.
Typ.
DAC LSB
DAC Zero
DAC FS ⁽¹⁾
DAC current source, least significant bit
DAC current with 0 input
DAC current source, with HEX F input
+/-100
10.3
+/-155
DAC DIFF LIN
ADC STEP ⁽²⁾
DAC differential non-linearity
ADC first step
+/-0.1
130
ADC LSB
ADC least significant bit
103
ADC FS
ADC full scale
1.56
ADC DIFF LIN
ACD differential non-linearity
+/-0.3
VCO GAIN
VCO gain
45
RXDRES
RXD0/1 resistance
74
VCO GAIN
Comparator input low voltage
RXDRES
Comparator input high voltage
1.8
Note: Specified typical values are from characterization at 25^oC, 3.3V AVDD, VDD. FS means full scale.
(1) Source and sink
(2) ADC STEP1 includes offset. Successive steps defined by ADC/LSB value.
Max.
100
+/-200
1.5
Units
µA
nA
µA
LSB
mV
mV
V
LSB
MHz/V
Ω
V
V
5.5 IDD Characteristics
Table 8: IDD Characteristics
Symbol
Conditions
Max.
Units
ISLEEP
ITXS
IRXS
Sleep mode
TX standby
RX standby
50
µA
21
mA
38
mA
IALL
Full duplex
70
mA
IPIN
Full duplex with PN1 disabled
68
mA
ITXON1
TX on, RX VCO off
41
mA
ITXON2
TX on, RX VCO on
58
mA
IRXON
RX on
58
mA
Notes: All IDD tests are done at AVDD = VDD = 3.6V, 1Mbps BPSK, 64MHz chipping, internal transmit PN code mixing A and B Gold codes, 50pF load using indicated
condition.
AMI Semiconductor – Sept. 06
7
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