tza3054a NXP Semiconductors, tza3054a Datasheet - Page 20

• Manufacturer Part Number: tza3054a
• Description: 100 Mbits/s To 3.2 Gbits/s A-rate Tm Limiting Amplifier
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 13466
Objective data sheet
Table 13:
[1]
Table 14:
Table 15:
Bit
4
3
2 to 0
Bit
7 to 5
4 to 0
Bit
7 to 5
Step size 250 mV (p-p) (differential).
RFLVL - I
SLEW - I
BW - I
Symbol
JAMPOL
I2CRFLVL
RFLVL[2:0]
Symbol
SLEWOCT[7:5]
SLEW[4:0]
Symbol
BWOCT[7:5] limiting amplifier bandwidth octave selection
2
C-bus register (address: 15h; default value = E8h) bit description
2
2
C-bus register (address: 14h; default value = E8h) bit description
C-bus register (address: 13h; default value = 15h) bit description
Rev. 01 — 12 August 2004
Description
jam input polarity
1 = inverted (active LOW) (default value)
0 = normal (active HIGH; CMOS)
RF output signal level setting
1 = I
0 = pin LVL setting enabled (default value)
RF output signal level (default value = 101)
000 = RF output off, no dissipation in output stage
001 = minimum RF output level, 500 mV (p-p) (differential)
111 = maximum RF output level, 2000 mV (p-p) (differential)
Description
000 = 3200 to 1800 Mbit/s
001 = 1800 to 900 Mbit/s
010 = 900 to 450 Mbit/s
011 = 450 to 225 Mbit/s
100 = 225 to 112 Mbit/s
101 = 112 to 56 Mbit/s
110 = reserved
111 = fully automatic (default value)
Description
RF output slew rate octave selection
000 = 3200 to 1800 Mbit/s
001 = 1800 to 900 Mbit/s
010 = 900 to 450 Mbit/s
011 = 450 to 225 Mbit/s
100 = 225 to 112 Mbit/s
101 = 112 to 56 Mbit/s
110 = reserved
111 = fully automatic (default value)
RF output slew control (default value = 01011)
00000 = automatic slew control off (selection with SLEWOCT)
00001 = maximum slew rate (fastest edges)
11111 = minimum slew rate (slowest edges)
2
C-bus setting enabled
100 Mbit/s to 3.2 Gbit/s A-rate
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
TZA3054A
limiting amplifier
20 of 32