參數資料
型號: PCF50732H
廠商: NXP SEMICONDUCTORS
元件分類: 通信及網絡
英文描述: Baseband and audio interface for GSM
中文描述: SPECIALTY TELECOM CIRCUIT, PQFP48
封裝: PLASTIC, LQFP-48
文件頁數: 50/64頁
文件大?。?/td> 322K
代理商: PCF50732H
1999 May 03
50
Philips Semiconductors
Objective specification
Baseband and audio interface for GSM
PCF50732
18.4
V
DDA
= 2.5 to 2.75 V; T
amb
=
40 to +85
°
C
Voice band receive (ASI to earphone)
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
RES
EARDAC
FSIN
EARDAC
resolution of DAC
internal sampling
frequency
gain step range
gain step size
calibration PGA range
gain step size
gain tolerance of
decoder
13
1000
bit
kHz
GRAN
VOL
GSTP
VOL
GRAN
PGA
GSTP
PGA
GTOL
VBRX
30
24
1
12
64
64
+6
+12
+1
dB
steps
dB
steps
dB
digital steps; see Table 25
digital steps; see Table 25
GMUTE
VBRX
mute attenuation of
decoder
FRESP
VBRX
digital filter frequency
response of
implemented standard
VSP software (version:
vb5_all)
FREJ
VBRX
out-of-band rejection
40
dB
f = 0 to 100 Hz
f = 300 to 3300 Hz
f = 3300 to 3400 Hz
f = 4000 Hz
1.0
2.0
20
+1.0
+1.0
18
dB
dB
dB
dB
f = 4600 Hz
f = 28.6 kHz
38
40
dB
dB
Audio Serial Interface (ASI)
FASIN
FSYNC
AFS
PCM input bit rate
PCM frame
synchronization
frequency at pin AFS
128
8
2048
kbits/s
kHz
Earphone output: EARP and EARN
V
ref(EAR)
V
o(EAR)(p-p)
DC reference level
output voltage
(peak-to-peak value)
V
ref
2
1.5
100
V
V
V
mA
load: 16
differential
load: 8
single-ended
load: 8
single-ended
I
o(EAR)peak
output source/sink
current
nominal gain from ASI
to EARP/EARN
GAIN
EARVOL
GRAN
VOL
=
12 dB; load 32
differential
single-ended
13
19
+5
12
18
11
17
+41
dB
dB
dB
GRAN
SIDVOL
total sidetone gain
(from MICP/MICN to
EARP/EARN)
THD
EAR
total harmonic distortion GRAN
EARVOL
=
12 dB
IDLN
EAR
idle noise at
EARP/EARN
1
72
%
dBmp
(2)
psophometrically weighted
(1)
;
GRAN
EARPGA
= 0 dB
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