SPECIFICATIONS
Typical at 25°C, AVDD = +5V, DVDD = +3.3V, ftx = 1168kHz (E1 single pair rate) and Normal Power mode, unless otherwise specified.
AFE1205E
PARAMETER
COMMENTS
MIN
TYP
MAX
UNITS
RECEIVE CHANNEL
Number of Inputs
Input Voltage Range
Common-Mode Voltage
Input Impedance
Input Capacitance
Input Gain Matching
Resolution
Differential
Balanced Differential(1)
1.5V CMV Recommended
All Inputs
2
±3.0
+1.5
V
V
See Typical Performance Curves
10
±2
pF
%
Bits
Line Input vs Hybrid Input
14
Programmable Gain
Settling Time
Four Gains: 0dB, 3.25dB, 6dB, and 9dB
Gain, rxSYNC, or Power Mode Change(8)
6
Symbol
Periods
%FSR(2)
Gain + Offset Error
Output Data Coding
Data Rate
Tested at Each Gain Range
5
Binary Two’s Complement
Normal Power
Medium Power
Low Power
Normal Power, rxSYNC(3)
384
192
160
196
2320
1168
320
kbps
kbps
kbps
kHz
Output Word Rate
1168
TRANSMIT CHANNEL
Transmit Clock Rate, fTX
Symbol Rate, Normal Power
Symbol Rate, Medium Power
Symbol Rate, Low Power
2320kbps
196
96
80
1168
584
160
kHz
kHz
kHz
kHz
kHz
kHz
dBm
Transmit –3dB Point
485
292
196
13.5
1168kbps
784kbps
Transmit Power(5)
13
14
Pulse Output
See Typical Performance Curves
Common-Mode Voltage, VCM
Output Resistance(5)
AVDD/2
1
V
Ω
DC to 1MHz
TRANSCEIVER PERFORMANCE
Uncancelled Echo(6)
rxGAIN = 0dB, Loopback Enabled
rxGAIN = 0dB, Loopback Disabled
rxGAIN = 3.25dB, Loopback Disabled
rxGAIN = 6dB, Loopback Disabled
rxGAIN = 9dB, Loopback Disabled
–67
–67
–69
–71
–73
dB
dB
dB
dB
dB
DIGITAL INTERFACE(5)
Logic Levels
VIH
VIL
VOH
VOL
|IIH| < 10µA
|IIL| < 10µA
IOH = –20µA
IOL = 20µA
DVDD – 1
–0.3
DVDD – 0.5
DVDD + 0.3
V
V
V
V
+0.8
+0.4
POWER
Analog Power Supply Voltage
Specification
Operating Range
Specification
5
V
V
V
4.75
3.15
5.25
5.25
Digital Power Supply Voltage
Power Dissipation( 4, 7)
3.3
Operating Range
V
Normal Power, 1:2 Line Transformer
Medium Power, 1:2 Line Transformer
Low Power, 1:2 Line Transformer
Normal Power, DVDD = 5V, 1:2 Line Transformer
385
300
240
415
55
mW
mW
mW
mW
dB
Power Dissipation(7)
PSRR
TEMPERATURE RANGE
Operating(5)
–40
+85
°C
NOTES: (1) With a balanced differential signal, the positive input is 180° out of phase with the negative input, therefore the actual voltage swing about the common
mode voltage on each pin is ±1.5V to achieve a differential input range of ±3.0V or 6Vp-p. (2) FSR is Full-Scale Range. (3) The output data is available at twice the
symbol rate with interpolated values. (4) With a pseudo-random equiprobable sequence of HDSL pulses; 13.5dBm applied to the transformer (27dBm output from
txLINEP and txLINEN). (5) Guaranteed by design and characterization. (6) Uncancelled Echo is a measure of the total analog errors in the transmitter and receiver
sections including the effect of non-linearity and noise. See the Discussion of Specifications section of this data sheet for more information. (7) Power dissipation
includes only the power dissipated within the component and does not include power dissipated in the external loads. The AFE1205 is tested with a 1:2 line
transformer. (8) This is the settling time required for any gain change, change of rxSYNC or any change of power mode.
®
AFE1205
2