AFE1104E Datasheet PDF - Burr-Brown Corporation
| Part Number | AFE1104E | |
| Description | HDSL/MDSL ANALOG FRONT END | |
| Manufacturers | Burr-Brown Corporation | |
| Logo |  |
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®
AFE1104
AFE1104E
HDSL/MDSL ANALOG FRONT END
FEATURES
q COMPLETE ANALOG INTERFACE
q T1, E1, AND MDSL OPERATION
q CLOCK SCALEABLE SPEED
q SINGLE CHIP SOLUTION
q +5V ONLY (5V OR 3.3V DIGITAL)
q 250mW POWER DISSIPATION
q 48-PIN SSOP
q –40°C TO +85°C OPERATION
DESCRIPTION
Burr-Brown’s Analog Front End greatly reduces the
size and cost of an HDSL or MDSL system by provid-
ing all of the active analog circuitry needed to connect
PairGain Technologies SPAROW HDSL digital sig-
nal processor to an external compromise hybrid and a
1:2 HDSL line transformer. All internal filter re-
sponses as well as the pulse former output scale with
clock frequency—allowing the AFE1104 to operate
over a range of bit rates from 196kbps to 1.168Mbps.
Functionally, this unit is separated into a transmit and
a receive section. The transmit section generates, fil-
ters, and buffers outgoing 2B1Q data. The receive
section filters and digitizes the symbol data received
on the telephone line and passes it to the SPAROW.
The HDSL Analog Interface is a monolithic device
fabricated on 0.6µCMOS. It operates on a single +5V
supply. It is housed in a 48-pin SSOP package.
PLLOUT
PLLIN
txDAT
txCLK
Pulse
Former
Transmit
Control
Line
Driver
Voltage
Reference
txLINEP
txLINEN
REFP
VCM
REFN
rxSYNC
rxCLK
rxLOOP
rxGAIN
2
rxD13 - rxD0
14
Receive
Control
Decimation
Filter
Delta-Sigma
Modulator
rxLINEP
rxLINEN
rxHYBP
rxHYBN
Patents Pending
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1996 Burr-Brown Corporation
PDS-11331A
APrFintEed1in1U0.S.4A. August, 1996
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TYPICAL PERFORMANCE CURVES
At Output of Pulse Transformer
Typical at 25°C, AVDD = +5V, DVDD = +3.3V, unless otherwise specified.
–20
–40
–60
–80
–100
–120
1K
POWER SPECTRAL DENSITY LIMIT
–38dBm/Hz for T1
–40dBm/Hz for E1
–80dB/decade
T1
E1
196kHz
–118dBm/Hz
292kHz
–120dBm/Hz
for E1
10K 100K 1M
Frequency (Hz)
10M
CURVE 1. Upper Bound of Power Spectral Density Measured at the Transformer Output.
B = 1.07
C = 1.00
D = 0.93
0.4T 0.4T
NORMALIZED
LEVEL
A 0.01
B 1.07
C 1.00
D 0.93
E 0.03
F –0.01
G –0.16
H –0.05
QUATERNARY SYMBOLS
+3
0.0264
2.8248
2.6400
2.4552
0.0792
–0.0264
–0.4224
–0.1320
+1
0.0088
0.9416
0.8800
0.8184
0.0264
–0.0088
–0.1408
–0.0440
–1
–0.0088
–0.9416
–0.8800
–0.8184
–0.0264
0.0088
0.1408
0.0440
–3
–0.0264
–2.8248
–2.6400
–2.4552
–0.0792
0.0264
0.4224
0.1320
1.25T
A = 0.01
F = –0.01
–1.2T
–0.6T 0.5T
E = 0.03
G = –0.16
H = –0.05
14T
A = 0.01
F = –0.01
50T
CURVE 2. Transmitted Pulse Template and Actual Performance as Measured at the Transformer Output.
INPUT IMPEDANCE vs BIT RATE
200
T1 = 78kbps, 45kΩ
E1 = 1168kbps, 30kΩ
150
100
T1
50
0
100
300
CURVE 3. Input Impedance of rxLINE and rxHYB.
500 700 900
Bit Rate (kbps)
5
E1
1100 1300
AFE1104
®
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for AFE1104E electronic component. |
| Information | Total 10 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ AFE1104E.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| AFE1104 | The function is HDSL/MDSL ANALOG FRONT END. Burr-Brown Corporation | |
| AFE1104E | The function is HDSL/MDSL ANALOG FRONT END. Burr-Brown Corporation | |
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