
2000 Oct 16 6
Philips Semiconductors Product specification
GSM/DCS/PCS power amplifier CGY2014TT
AC CHARACTERISTICS
VDD = 3.5 V; Tamb =25°C; measured on the Philips demoboard (see Fig.8).
Notes
1. The device is adjusted to provide nominal load power into a 50 Ωload. The device is switched off and a 6 : 1 load
replaces the 50 Ωload. The device is switched on and the phase of the 6 : 1 load is varied 360 electrical degrees
during a 60 seconds test period.
2. The power amplifier can be matched to PCS and or DCS/PCS operation through optimization of the matching circuit.
3. Isolation can be improved to −20 dBm (typical value) with a pin diode switched in the DCS output matching.
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Low band: GSM power amplifier
Pi(LB) input power −2 0 +2 dBm
fRF(LB) RF frequency range 880 −915 MHz
Po(LB)(max) maximum output power see Figs 3 and 4 34.5 35 −dBm
ηLB efficiency see Fig.3 50 55 −%
Po(LB)(min) minimum output power VDD =0V;P
i(LB) = 0 dBm −−35 −dBm
NRX(LB) output noise in RX band Pi(LB) = 0 dBm
fRF = 925 to 935 MHz −−−117 dBm/Hz
fRF = 935 to 960 MHz −−−129 dBm/Hz
H2LB 2nd harmonic level Pi(LB) = 0 dBm −−−35 dBc
H3LB 3rd harmonic level Pi(LB) = 0 dBm −−−35 dBc
StabLB stability Pi(LB) = 0 dBm; note 1 −−−60 dBc
High band: DCS/PCS power amplifier; note 2
Pi(HB) input power 2 3 5 dBm
fRF(HB) RF frequency range for DCS operation 1710 −1785 MHz
Po(HB)(max) maximum output power see Figs 5 and 6 32 32.5 −dBm
ηHB efficiency see Fig.5 38 40 −%
Po(HB)(min) minimum output power VDD =0V;P
i(HB) = 3 dBm −−32 −dBm
αHB high band isolation when
low band is operating VDD(LB) = 3.5 V; Pi(LB) = 0 dBm;
VDD(HB) =0V;P
i(HB) = 3 dBm;
note 3
−0−dBm
NRX(HB) output noise in RX band Pi(HB) = 3 dBm −−−121 dBm/Hz
H2HB 2nd harmonic level Pi(HB) = 3 dBm −−−35 dBc
H3HB 3rd harmonic level Pi(HB) = 3 dBm −−−35 dBc
StabHB stability Pi(HB) = 3 dBm; note 1 −−−60 dBc