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參數(shù)資料
| 型號： | TZA3041BHL |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 其它接口 |
| 英文描述： | Gigabit Ethernet/Fibre Channel laser drivers |
| 中文描述： | SPECIALTY INTERFACE CIRCUIT, PQFP32 |
| 封裝： | 5 X 5 X 1.40 MM, PLASTIC, LQFP-32 |
| 文件頁數(shù)： | 19/32頁 |
| 文件大小： | 153K |
| 代理商： | TZA3041BHL |
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2002 Aug 13
19
Philips Semiconductors
Product specification
Gigabit Ethernet/Fibre Channel laser
drivers
TZA3041AHL; TZA3041BHL;
TZA3041U
Notes
1.
Supply current:
a) The values do not include the modulation and bias currents through pins LA, LAQ and BIAS.
b) Minimum value refers to V
TONE
= 1.4 V at I
o(mod)(min)
and V
TZERO
= 1.4 V at I
O(BIAS)(min)
.
c) Maximum value refers to V
TONE
= 3.4 V at I
o(mod)(max)
and V
TZERO
= 3.4 V at I
O(BIAS)(max)
.
d) A first order estimate of the typical value of I
CC(tot)
as a function of T
j
, I
o(mod)
, and I
O(BIAS)
is:
I
CC(tot)
=
2.
Power dissipation:
a) The value for P
tot
includes the modulation and bias currents through pins LA, LAQ and BIAS.
b) The minimum value for P
tot
is the on-chip dissipation when V
TONE
= 1.4 V at I
o(mod)(min)
, V
LA
= V
LAQ
= 2 V,
V
TZERO
= 1.4 V at I
O(BIAS)(min)
, V
O(BIAS)
= 1 V, and parameter processes are at a minimum.
c) The maximum value for P
tot
is the on-chip dissipation when V
TONE
= 3.4 V at I
o(mod)(max)
, V
LA
= V
LAQ
= 2 V,
V
TZERO
= 3.4 V at I
O(BIAS)(max)
, V
O(BIAS)
= 1 V, and parameter processes are at a maximum.
d) P
tot
= I
CC(tot)
×
V
CC
+ I
O(BIAS)
×
V
O(BIAS)
+ I
LA
×
V
LA
with I
o(mod)(on)
flowing through pin LA.
The minimum value of the capacitance on pin MONIN is required to prevent instability.
The reference currents can be set by connecting external resistors between V
CC
and pins ONE and ZERO
(see Section “Automatic laser control”). The corresponding MPD current range for optical 1 is from 96 to 1040
μ
A.
The MPD current range for optical 0 is from 24 to 260
μ
A.
See Section “Accuracy of voltage on inputs: ONE, ZERO, ALARMLO, ALARMHI”.
See Section “Automatic laser control”.
The specified transconductance is the ratio between the modulation current on pins LA or LAQ and the voltage on
pin TONE, under small signal conditions.
3.
4.
5.
6.
7.
Alarm reference current inputs: pins ALARMHI and ALARMLO (TZA3041AHL)
I
ref(ALARMLO)
reference current on
pin ALARMLO
reference voltage on
pin ALARMLO
attenuation ratio of
I
ref(ALARMLO)
to I
O(BIAS)(min)
minimum bias current
detection hysteresis
reference current on
pin ALARMHI
reference voltage on
pin ALARMHI
attenuation ratio of
I
ref(ALARMHI)
to I
O(BIAS)(max)
note 14
6
100
μ
A
V
ref(ALARMLO)
referenced to V
CC(R)
1.5
V
α
(ALARMLO)
note 15
200
315
400
I
O(BIAS)(min)(hys)
7.5
10
15
%
I
ref(ALARMHI)
note 14
6
65
μ
A
V
ref(ALARMHI)
referenced to V
CC(R)
1.5
V
α
(ALARMHI)
note 15
1300
1600
1800
I
O(BIAS)(max)(hys)
maximum bias current
detection hysteresis
7.5
10
15
%
Reference voltage output: pin BGAP
V
O
output voltage
1.165
1.20
1.235
μ
A
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
55.6 mA
0.0015
+
I
O BIAS
)
mA
[
]
I
o mod
)
on
(
)
mA
[
]
×
×
1
0.026
T
°
C
[
]
----25
×
–
×
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