ATR0601 Datasheet, PDF (6/17 Pages) ATMEL Corporation – GPS FRONT-END IC

7. Electrical Characteristics (Continued)
No. Parameters
Test Conditions
Pin Symbol Min.
Typ.
Max.
Unit
2 Mixer
2.1 Output frequency
2.2
Input impedance
(balanced)
f_XTO = 23.104 MHz
13, 14
f_IF
f_RF = 1575.42 MHz
10, 11
Z₁₁
96.764
10-j80
MHz
Ω
2.3 Conversion Gain
Recommended IF-filter 8
G_MIX
20
dB
2.4 Noise figure (SSB)
8
NF_MIX
5.8
dB
3 VGA/AGC
3.1 Minimum gain
V_AGCO = 1.0V
3.2 Maximum gain
V_AGCO = 2.2V
3.3 Control-voltage sensitivity ^{VAGCO = 2.2V}
V_AGCO = 1.0V
3.4 AGC cut-off frequency C_ext = open
3.5 AGC cut-off frequency C_ext = 100 pF
3.6
Gain-control output
voltage
G_VGA,min
G_VGA,max
N_VGA,min
N_VGA,max
2
f_{3dB_AGC}
2
f_{3dB_AGC}
2
V_AGCO
0.9
0
70
6.6
150
250
33
dB
dB
dB/V
dB/V
kHz
kHz
2.3
V
4 Reference Oscillator
4.1
XTO phase noise at
100 Hz
With specified crystal 24
Pn₁₀₀
–80
dBc/Hz
4.2 XTO phase noise at 1 kHz With specified crystal 24
5 Clock and Data Driver
Pn_1k
–100
dBc/Hz
5.1 Clock driver frequency
5.2 Clock output level
5.3 Clock output level
5.4 Data output level
5.5 Data output level
6 PMSS
f_XTO = 23.104 MHz
C_load,max = 10 pF
C_load.max = 10 pF
C_load,max = 10 pF
C_load,max = 10 pF
24
24
24
22, 23
22, 23
f_CLK
V_CLK,high
V_CLK,low
V_Data,high
V_Data,low
23.104
0.9 × V_DIG
0.1 × V_DIG
0.9 × V_DIG
0.1 × V_DIG
MHz
V
V
V
V
6.1 Voltage level power-on
17, 18
V_PU,on
1.3
V
6.2 Voltage level power-off
17, 18
V_PU,off
0.5
V
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Notes:
1. Conditions: V_CC = 2.7V; V_DIG = 1.65V; Temperature = 27°C
2. Capacitive load (C_L = 3.3 pF) at pins 22, 23, 24
3. Capacitive load (C_L = 3.3 pF) at pin 24
Type*
A
C
B
C
B
B
D
D
D
D
B
C
C
A
B
B
B
B
A
A
6 ATR0601 [Preliminary]
4866A–GPS–08/05