DS3251+ Maxim Integrated Products, DS3251+ Datasheet - Page 47

• Manufacturer Part Number: DS3251+
• Description: IC LIU DS3/E3/STS-1 144-CSBGA
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

Specifications of DS3251+

• Number Of Drivers/receivers: 1/1
• Protocol: DS3
• Voltage - Supply: 3.135 V ~ 3.465 V
• Mounting Type: Surface Mount
• Package / Case: 144-CSBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 17-D. Receiver Input Characteristics—DS3 and STS-1 Modes
(V
Table 17-E. Receiver Input Characteristics—E3 Mode
(V
Receive Sensitivity (Length of Cable)
Signal-to-Noise Ratio, Interfering Signal Test (Notes 1, 2)
Input Pulse Amplitude, RMON = 0 (Notes 2, 3)
Input Pulse Amplitude, RMON = 1 (Note 2, 3)
Analog LOS Declare, RMON = 0 (Note 4)
Analog LOS Clear, RMON = 0 (Note 4)
Analog LOS Declare, RMON = 1 (Note 4)
Analog LOS Clear, RMON = 1 (Note 4)
Intrinsic Jitter Generation (Note 2)
Note 1:
Note 2:
Note 3:
Note 4:
Receive Sensitivity (Length of Cable)
Signal-to-Noise Ratio, Interfering Signal Test (Notes 1, 2)
Input Pulse Amplitude, RMON = 0 (Notes 2, 3)
Input Pulse Amplitude, RMON = 1 (Notes 2, 3)
Analog LOS Declare, RMON = 0 (Note 4)
Analog LOS Clear, RMON = 0 (Note 4)
Analog LOS Declare, RMON = 1 (Note 4)
Analog LOS Clear, RMON = 1 (Note 4)
Intrinsic Jitter Generation (Note 2)
Note 1:
Note 2:
Note 3:
Note 4:
DD
DD
= 3.3V ±5%, T
= 3.3V ±5%, T
An interfering signal (2
combined signal is passed through 0 to 900 feet of coaxial cable and presented to the DS325x receiver. This spec indicates the
lowest signal-to-noise ratio that results in a bit error ratio ≤ 10
Not tested during production test.
Measured on the line side (i.e., the BNC connector side) of the 1:2 receive transformer
incoming data traffic is unframed 2
With respect to nominal 1000mVpk signal.
An interfering signal (2
combined signal is passed through 0 to 900 feet of coaxial cable and presented to the DS325x receiver. This spec indicates the
lowest signal-to-noise ratio that results in a bit error ratio ≤ 10
Not tested during production test.
Measured on the line side (i.e., the BNC connector side) of the 1:2 receive transformer
incoming data traffic is unframed 2
With respect to nominal 800mVpk signal.
A
A
= -40°C to +85°C.)
= -40°C to +85°C.)
23
15
- 1 PRBS, HDB3 encoded, compliant waveshape, nominal bit rate) is added to the input signal. The
- 1 PRBS, B3ZS encoded, compliant waveshape, nominal bit rate) is added to the input signal. The
PARAMETER
PARAMETER
23
15
- 1 PRBS.
- 1 PRBS.
47 of 71
-9
-9
.
.
MIN
MIN
900
900
(Figure
(Figure
2-1). During measurement,
2-1). During measurement,
1200
1200
TYP
0.03
TYP
0.03
-24
-21
-38
-35
-24
-21
-38
-35
10
12
MAX
1000
MAX
1300
200
260
UNITS
UNITS
mVpk
mVpk
mVpk
mVpk
UI
UI
dB
dB
dB
dB
dB
dB
dB
dB
ft
ft
P-P
P-P