lxt6155 Intel Corporation, lxt6155 Datasheet - Page 41

• Manufacturer Part Number: lxt6155
• Description: 155 Mbps Sdh/sonet/atm Transceiver
• Manufacturer: Intel Corporation

Datasheet
LOS Thresholds - Coax
LOS hysteresis - coax
Receive jitter generation
(intrinsic jitter SONET spec)
Receive jitter generation
(intrinsic jitter SDH spec)
Receive jitter transfer peaking
Receive jitter tolerance
PLL nominal center frequency
PLL capture range
PLL track range
PLL lock time
Equalizer adaptation time
Line input impedance
(RTIP and RRING)
1. Typical values are at 25C and 3.3V. They are for design aid only; not guaranteed and not subject to production testing.
2. Not production tested, guaranteed by design and other correlation factors.
Rise/Fall time - All TTL outputs
SDI to SCLK setup time
SCLK to SDI hold time
SCLK low time
SCLK high time
SCLK rise and fall time
CS to SCLK setup time
SCLK to CS hold time
CS inactive time
SCLK to SDO valid
1. Typical values are at 25C and 3.3V. They are for design aid only; not guaranteed and not subject to production testing.
Table 31. Receive Analog Characteristics (Continued)
Parameter
Parameter
2
2
2
2
500 Hz - 1.3 MHz
12 kHz - 1.3 MHz
65 kHz - 1.3 MHz
500 Hz - 6.5 kHz
0.1 Hz - 19.3 Hz
DC - 230 kHz
De-assert
65 kHz -
Assert
Ftrack
Fnom
Tlock
Note
Fcap
HYS
tCWH
RIN
tCDH
tR, tF
tCCH
tCDV
Sym
tRF
tDC
tCH
tCC
tCL
Min
120
120
0.15
5
155 Mbps SDH/SONET/ATM Transceiver — LXT6155
Min
5
5
5
5
0
1.0
1.5
-20
-20
18
17
39
4
155.52
Typ
100
500
Typ
1
0.075
Max
0.01
+20
+20
4.0
0.1
1.5
0.4
Max
25
25
20
UIrms
UIpp
UIpp
UIpp
UIpp
UIpp
UIpp
MHz
Unit
ppm
ppm
bits
k
dB
dB
dB
dB
s
Attenuation measured at 78
MHz, CMI, 75
cable loss plus remaining flat
loss.
Measured from the level where
LOS is asserted. PRBS(23)
data.
CMI encoded PRBS(23) at
RTIP/RRING with no data jitter.
Transmit input = all zeros Refer
to Figure 27 and Table 33.
PRBS(23) Data. Input jitter as
the max. tolerance curve
shown in Figure 26.
BER=1E-10. Tolerated jitter
meets Figure 26
PRBS(23) pattern, from data
applied at RTIP/RRING. Device
in fiber optic mode.
From data applied
Differential resistance
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Test Conditions
Load 1.6mA, 50pF
Test Conditions
load. 12.7 dB
1
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