TZA3043 Ver la hoja de datos (PDF) - Philips Electronics
Número de pieza
componentes Descripción
Fabricante
TZA3043 Datasheet PDF : 28 Pages
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Philips Semiconductors
Gigabit Ethernet/Fibre Channel
transimpedance amplifier
Product specification
TZA3043; TZA3043B
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Data outputs: pins OUT and OUTQ
Vo(cm)
Vo(se)(p-p)
common mode output voltage
single-ended output voltage
(peak-to-peak value)
VOO
differential output offset
voltage
Ro
output resistance
tr, tf
rise time, fall time
AC coupled; RL = 50 Ω VCC − 2
AC coupled; RL = 50 Ω; 75
input current 100 µA (p-p)
−100
single-ended; DC tested 40
VCC = 5 V; 20% to 80%; −
input current <20 µA (p-p)
VCC = 3.3 V; 20% to 80%; −
input current <20 µA (p-p)
VCC − 1.7 VCC − 1.4 V
200
330
mV
−
+100
mV
50
62
Ω
285
430
ps
300
460
ps
Automatic gain control loop: pad AGC
Ith(AGC)
AGC threshold current
referenced to the peak −
25
−
µA
input current; tested at
10 MHz
tatt(AGC)
tdecay(AGC)
AGC attack time
AGC decay time
−
5
−
µs
−
10
−
ms
Notes
1. PSRR is defined as the ratio of the equivalent current change at the input (∆IIPhoto) to a change in supply voltage:
PSRR = ∆---∆--I--IV-P----hC--o-C--t--o-
For example, a +10 mV disturbance on VCC at 10 MHz will typically add an extra 20 nA to the photodiode current.
The external capacitor between pins DREF and GND has a large impact on the PSRR. The specification is valid with
an external capacitor of 1 nF.
2. The pulse width distortion (PWD) is <5% over the whole input current range. The PWD is defined as:
PWD
=
p----u---l--s---e--T---w----i-d----t-h--
–
1
× 100%
where T is the clock period. The PWD is measured differentially with
PRBS pattern of 10−23.
3. All In(tot) measurements were made with an input capacitance of Ci = 1 pF. This was comprised of 0.5 pF for the
photodiode itself, with 0.3 pF allowed for the printed-circuit board layout and 0.2 pF intrinsic to the package. Noise
performance is measured differentially.
2002 Sep 06
10
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