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2.4.5 Transmit I and Q Channel Outputs
PARAMETER MIN TYP MAX UNIT
Peak output voltage full scale centered at VCM
Differential 2.24
Vp
P
ea
k
ou
t
pu
t
vo
lt
age
f
u
ll
sca
l
e, cen
t
ere
d
a
t
VCM
Single ended 1.12
V
p
Nominal output-level (constellation radius) centered
Differential 1.5
V
Nominal output level (constellation radius) centered
at VCM
Single ended 0.75
V
Low-level drift ±200 PPM/°C
Transmit error vector magnitude (EVM) 3% 4%
Resolution 8 bits
S/(N+D) ratio at differential outputs 48 52 dB
Gain error (I or Q channel) ±8% ±12%
Gain mismatch between I and Q ±0.3 dB
Gain sampling mismatch between I and Q 20 ns
Zero code error differential ±80 mV
Zero code error, each output, with respect to VCM ±80 mV
Zero code error, I to Q, with respect to other channel (differential or
single ended)
±10 mV
Load impedance, between P and N terminals 10 kΩ
Transmit offset DACs I and Q resolution 6 bits
Transmit offset DACs I and Q average step size 2.9 3.4 3.9 mV
Transmit offset DACs I and Q full-scale positive output 105.4 mV
Transmit offset DACs I and Q full-scale negative output –108.8 mV
Transmit offset DACs differential nonlinearity ±1.1 LSB
Transmit offset DACs integral nonlinearity ±1.1 LSB
2.4.6 Auxiliary D/A Converters
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
O
AV
DD
> 3 V
†
, AUXFS [1:0] = 00 0.2 2.5
V
Output range
AV
DD
> 4.5 V
†
, AUXFS [1:0] = 10 0.2 4
V
pg
AV
DD
> 5 V
†
, AUXFS [1:0] = 11 0.2 4.5
Resolution AGC, AFC, PWRCONT
DACs
8 bits
Resolution LCDCONTR DAC 4 bits
Gain + offset error (full scale) AGC,
AFC, PWRCONT DAC
±3%
Gain + offset error (full scale)
LCDCONTR DAC
±7%
Differential nonlinearity ±0.75 ±1 LSB
Integral nonlinearity ±0.75 ±1 LSB
†
Range settings depends only on AUXFS [1:0]. The supply voltage is not detected.