HD155121F Datasheet, PDF (17/57 Pages) Hitachi Semiconductor – RF Transceiver IC for GSM and PCN Dual band cellular systems

HD155121F
• IQ Modulator and Offset PLL specifications (IFLO is supplied by signal generator equipment)
Item
Mode Min Typ Max Unit Test Condition
Frequency (RF)
GSM 880 —
915 MHz
PCN 1710 —
1785 MHz
Frequency (LO)
GSM 1150 —
1185 MHz
PCN 1530 —
1665 MHz
Frequency (IF)
GSM —
270 —
MHz
PCN —
135 —
MHz
RFLO input level
–8 —
— dBm
IFLO input level
–20 –10 — dBm
VCOIN1 & VCOIN2 input level
–25 –15 –10 dBm
Carrier suppression ratio
31 40
— dBc All ‘1’ GMSK (Differential encode: off)
(Baseband = 67.7kHz)
Side-band suppression ratio
35 40
— dBc I/Q input swing = 1.0Vp-p,
I/Q common mode
input voltage = 1.0Vdc
Phase accuracy
GSM —
1.0
2.5 RMS 200kHz BW
GSM —
3.0
7.5 peak 200kHz BW
PCN —
1.0
2.4 RMS 200kHz BW
PCN —
3.0
7.0 peak 200kHz BW
Modulation spectrum
GSM —
–34.0 —
dB 200kHz offset
PCN —
–34.5 —
dB 30kHz bandwidth
Spectrum analyzer condition
GSM —
–68.0 —
dB 400kHz offset
Detector mode: positive peak
PCN —
–67.0 — dB 30kHz bandwidth
GSM —
–71.0 —
dB 600kHz to 1.8MHz offset
PCN —
–70.0 —
dB 30kHz bandwidth
GSM —
–71.5 —
dB 1.8MHz to 3MHz offset
PCN —
–72.0 —
dB 100kHz bandwidth
GSM —
–74.0 —
dB 3MHz to 6MHz offset
PCN —
–74.0 —
dB 100kHz bandwidth
GSM —
–76.0 —
dB 6MHz upward offset
PCN —
–76.0 —
dB 100kHz bandwidth
Isolation of the 1st local input to
TxVCO input
—
43
— dB
IQ input swing (Single ended)
0.8 1.0 1.2 Vp-p IIN, IINB, QIN, QINB
I/Q common mode input voltage
0.8 1.0 1.2 V
IIN, IINB, QIN, QINB
PLLOUT output current ratio
—
1:0.5 —
IPLLOUT GSM : IPLLOUT PCN
Phase detector
offset current ratio
0.30 0.35 0.45
offset current / output current
IIN = 1.5V (DC), IINB = 0.5V (DC)
QIN = 1.5V (DC), QINB = 0.5V (DC)
Note: 1. These values are not tested in mass production.
Note
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
17