73M1903C-IM/F Maxim Integrated Products, 73M1903C-IM/F Datasheet - Page 35

• Manufacturer Part Number: 73M1903C-IM/F
• Description: IC MODEM AFE MULTIREGIONAL 32QFN
• Manufacturer: Maxim Integrated Products

Specifications of 73M1903C-IM/F

• Number Of Channels: 2
• Voltage - Supply, Analog: 3 V ~ 3.6 V
• Voltage - Supply, Digital: 3 V ~ 3.6 V
• Package / Case: 32-VFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Number Of Bits: -

DS_1903C_033
9.3.2 Transmitter
Parameter
DAC gain
(Transmit Path Gain)
DC offset –
Differential Mode
DC offset – Common
Mode
TXBST0 Gain
DTMFBST Gain
Total Harmonic
Distortion (THD)
200 Ω Resistor
across TNAN/TXAP
Intermod Distortion
Idle Channel Noise
PSRR
Passband Ripple
Transmit Gain
Flatness
TXAP/N output
impedance
differentially
(TXDIS=1)
Txap/n common
output offset
(TXDIS=1)
Note: TXBST0 and DTMFBS are assumed have setting 0’s unless they are specified otherwise.
Rev. 5.0
Code word of ± 32,767 @1 kHz;
TXBST0=0; DTMFBST=0
Across TXAP and TXAN for
DAC input = 0
Average of TXAP and TXAN for DAC input = 0;
relative to VREF
Code word of ± 32,767 @1 kHz;
relative to TXBST0=0; TXBST1=0
Code word of ± 32,767 @1 kHz;
relative to TXBST0=0; TXBST1=0
Code word of ± 24,575 (75% scale) @1 kHz;
relative to TXBST0=0;TXBST1=0
THD = 2
Code word of ± 26,213 (80% scale) @1 kHz;
relative to TXBST0=0;TXBST1=0
THD = 2
Code word of ± 29,490 (90% scale) @1 kHz;
relative to TXBST0=1;TXBST1=1
THD = 2
Code word of ± 29,490(90% scale) @1 kHz;
relative to TXBST0=1;DTMFBST=1
THD = 2
At output (TXAP-TXAN): DTMF
1.0 kHz, 1.2 kHz sine waves, summed
2.0 V
Refer to TBR 21 specifications for description of
complete requirements.
200 Hz - 4.0 kHz
-30 dBm signal at VPA
300 Hz - 30 kHz
300 Hz - 3.2 kHz
Code word of ± 32,767 @1 kHz. Measure gain
at 0.5 kHz, and 2 kHz relative to 1 kHz.
Gain at 0.5 kHz
Gain at 1 kHz (Normalized)
Gain at 2.0 kHz
Gain at 3.3 kHz
TXDIS =1.
Measure impedance differentially between TXAP
and TXAN.
TXDIS=1
Short TXAP and TXAN. Measure the voltage
respect to Vbg
Table 19: Transmitter Performance Specifications
pk
(-2 dBm tone summed with 0 dBm tone)
nd
nd
nd
nd
and 3
and 3
and 3
and 3
rd
rd
rd
rd
Test Condition
harmonic.
harmonic.
harmonic.
harmonic.
-0.125
-100
Min
-80
-80
-75
-60
-20
73M1903C Data Sheet
1.335
0.193
-0.12
Nom
1.65
0.17
110
160
-85
-85
-70
-70
70
70
0
0
0.125
Max
100
80
40
20
below
Units
µv/bit
DB32
tone
MV
MV
low
mV
DB
dB
dB
dB
dB
dB
μV
dB
dB
dB
dB
dB
dB
kΩ
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