W3000 Datasheet, PDF (7/28 Pages) Agere Systems – W3000 PLL Dual-Band Frequency Synthesizer

Advance Data Sheet
December 1999
Charge Pump Current
A
B
C
D
E
F
W3000 PLL Dual-Band Frequency Synthesizer
ICP-DN (T = 25 °C )
ICP-UP (T = 25 °C )
COMPLIANCE
RANGE
VDDC – 0.4 V
COMPLIANCE
RANGE
0.4 V
0.4
A: CP UP CURRENT AT VCP = VDDC – 0.4.
B: CP UP CURRENT AT VCP = VDDC/2.
C: CP UP CURRENT AT VCP = 0.4.
VDDC/2
VCP
D: CP DOWN CURRENT AT VCP = 0.4 V.
E: CP DOWN CURRENT AT VCP = VDDC/2.
F: CP DOWN CURRENT AT VCP = VDDC – 0.4.
2.45
Figure 4. Charge Pump Current vs. Voltage
Table 4. Charge Pump Specifications
Conditions (unless otherwise specified): VDD = 2.7 V; TA = 25 °C ± 3 °C; VDDC = 2.85 V; VCP = VDDC/2;
RREF = 18 kΩ.
Parameter
Charge Pump Output Current
CP High-Impedance State
Current
CP Sink vs. Source Mismatch¹
CP Current vs. Voltage²
CP Current vs Temperature³
Conditions
ICP = 0.7 mA
ICP= 0.7 mA
ICP = 0.9 mA
ICP = 0.9 mA
ICP = 1.9 mA
ICP = 1.9 mA
ICP = 2.5 mA
ICP = 2.5 mA
0.4 < VCP < VDDC – 0.4 V,
–30 °C < TA < +85 °C
TA = 25 °C
0.4 < VCP < VDDC – 0.4 V,
TA = 25 °C
–30 °C < TA < +85 °C
Symbol
IUP
IDN
IUP
IDN
IUP
IDN
IUP
IDN
ITRI
—
—
—
Min
0.6
–0.8
0.8
–1.0
1.6
–2.2
2.1
–2.9
—
—
—
—
Typ
0.7
–0.7
0.9
–0.9
1.9
–1.9
2.5
–2.5
0.1
3
2
8
Max
0.8
–0.6
1.0
–0.8
2.2
–1.6
2.9
–2.1
20
15
8.5
10
Unit
mA
mA
mA
mA
mA
mA
mA
mA
nA
%
%
%
Notes (refer to Figure 4 for definitions):
1. ICP-DN vs ICP-UP = charge pump output current up vs down mismatch = [|E| – |B|]/[ 1/2 * {|E| + |B|}] * 100%.
2. ICP vs VCP = charge pump output current magnitude variation vs voltage = [ 1/2 * {|F| – |D|}]/[1/2 * {|F| +|D|}] * 100% and
[1/2 * {|A| - |C|}]/[1/2 *{|A| + |C|}] * 100%.
3. ICP vs TA = charge pump output current magnitude variation vs. temperature = [|E @ temp| – |E @ 25 °C|]/|E @ 25 °C| * 100% and [|B @
temp| – |B @ 25 °C|]/|B @ 25°C| * 100%.
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