Philips Semiconductors
Antenna diversity circuit
Objective specification
TEA6101/T
AC CHARACTERISTICS
VP = 8.5 V; Tamb = 25 °C; unless otherwise specified
SYMBOL
PARAMETER
CONDITIONS
Mute
SOFT MUTE (VL)
ZI
input impedance (pin 3 (3))
MR
mute range
note 1
Vaud/VI
mute gain
VL = 2.75 V
VL = 1.45 V
HARD MUTE (VMUTE)
Vmute
+Im
−Im
THD
−60 dB output attenuation
mute ON sink current
mute `OFF` source current
total harmonic distortion
VI(p-p)
audio input voltage
Vmute = 1 V, VL = 0 V
Vmute = 0 V
Vi = 200 mV; VL = 2.5 V
THD > 10%
(peak-to-peak value)
(S+N)/N
Vaud/Vp
Vref
Voff1
signal-to-noise ratio; measured with
dB(A) curve
ripple rejection
output reference voltage
audio comparator offset voltage
Vaud = 600 mV; 1 kHz;
VL = 3 V
note 2; 300 Hz; 100 mV;
VL = 2.5 V
Voff1 = Vmin − Vap
with priority
with no priority
Vt = 0 V
Vt = 3 V
Level comparator
Vref−Vil
t
voltage for high comparator output
monostable multivibrator time
period
started with both
comparator outputs HIGH
Timing/memory
−It
source current
Ct
value delay capacitor
Tt
timing duration
+It
reset current
Vt
change of priority antenna
Antenna switch outputs
−Ios
output source current
+Ios
output sink current
Ct = 47 nF
Vt = 3 V
MIN.
−
17
−
−1
−
−
3
−
−
−
28
−
−
−
−
−
16
−
−
−
−
−
−
−
TYP.
20
19.3
2.7
0.6
455
370
−
0.09
3
95
32
5.3
+250
−1100
−348
56
21
30
−
6
17.7
3.7
−
−
MAX. UNIT
−
kΩ
−
V
−
dB
2
dB
−
mV
−
µA
−
µA
−
%
−
V
−
dB
−
dB
−
V
−
mV
−
mV
−
mV
−
mV
28
µs
−
µA
50
nF
−
ms
−
mA
−
V
7
mA
7
mA
May 1992
8