HD155101BF Datasheet, PDF (39/50 Pages) Hitachi Semiconductor – RF Single-chip Linear IC for GSM and EGSM Systems

HD155101BF
Phase accuracy and lock up time characteristics depend on the OPLL loop bandwidth. The following table
shows measurement result of each characteristic, when the OPLL loop bandwidth is changed.
Table 2
Measurement Results of Transmitter Characteristics vs. OPLL Loop Bandwidth
Dependence (R_ICURAD = 8.2 kΩ, IFLO generated by signal generator)
Item
VCO & Phase detector
Loop bandwidth (measured)
C1
C2
C3
R2
R3
Conditions
Condition1 Condition 2 Condition 3 Condition 4 Condition 5
VCO: MURATA MQE502-902 or MQE601-902,
C3 = 100 pF in VCO, R_ICURAD = 8.2 kΩ,
k_vr = 2π × 11 × 10⁶(rad/Vsec), k_dr = ( 2.83 × 10^–3) / π (A/rad)
0.8
1.1
1.3
1.5
1.6
680
390
300
220
180
10.0
6.8
4.7
3.3
2.7
100
100
100
100
100
68
100
110
130
130
390
330
270
220
200
Unit
MHz
pF
nF
pF
Ω
Ω
Item
Spec.
200 kHz offset
≤ –33
400 kHz offset
≤ –63
600 kHz to 1.8 MHz offset ≤ –63
1.8 MHz to 3 MHz offset ≤ –66
3 MHz to 6 MHz offset
≤ –68
6 MHz upwards offset
≤ –74
Carrier suppression
≥ 31
Side band suppression
≥ 35
Phase accuracy PN9 ≤ 2.5
PN9 ≤ 6.0
All ‘1’ ≤ 2.5
All ‘1’ ≤ 6.0
Lock up time
≤ 80
Tx noise in
925 MHz
Rx band
935 MHz
VCO noise only 925 MHz
935 MHz
Measured1 Measured2 Measured3 Measured4
–37.23
–37.09
–37.60
–37.70
–67.41
–67.95
–68.49
–68.94
–72.86
–72.85
–73.09
–73.48
–79.65
–76.96
–76.45
–75.70
–82.11
–81.11
–80.83
–79.18
–82.77
–82.67
–82.59
–81.98
47.35
48.44
47.54
46.71
39.10
39.47
39.89
39.89
1.53
1.16
1.02
0.89
3.30
2.90
2.81
2.72
0.99
0.95
0.93
0.93
2.26
2.33
2.33
2.31
58.1
41.1
29.4
19.1
–163.3
–158.6
–157.0
–155.1
–166.4
–165.6
–165.4
–164.1
–165.2 (0 dBc = –0.5 dBm, noise –165.7 dBm/Hz)
–166.4 (0 dBc = –0.5 dBm, noise –166.9 dBm/Hz)
Measured5
–37.86
–69.23
–73.26
–74.96
–79.58
–82.38
48.36
40.33
0.84
2.64
0.89
2.04
17.2
–154.9
–163.3
Unit
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
deg. rms
deg. peak
deg. rms
deg. peak
µsec
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz