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TP3056B Scheda tecnica(PDF) 7 Page - Texas Instruments

Il numero della parte TP3056B
Spiegazioni elettronici  MONOLITHIC SERIAL INTERFACE COMBINED PCM CODEC AND FILTER
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
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TP3056B Scheda tecnica(HTML) 7 Page - Texas Instruments

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TP3056B
MONOLITHIC SERIAL INTERFACE
COMBINED PCM CODEC AND FILTER
SLWS072A – MAY 1998 – REVISED AUGUST 1998
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
operating characteristics, over operating free-air temperature range, VCC = 5 V ±5%,
VBB = –5 V ±5%, GND at 0 V, VI = 1.2276 V, f = 1.02 kHz, transmit input amplifier connected for unity
gain, noninverting, in A-law and
µ-law modes, (unless otherwise noted) (continued)
envelope delay distortion with frequency
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
UNIT
Transmit delay, absolute (at 0 dBm0)
f = 1600 Hz
290
315
µs
f = 500 Hz to 600 Hz
195
220
f = 600 Hz to 800 Hz
120
145
f = 800 Hz to 1000 Hz
50
75
Transmit delay, relative to absolute‡
f = 1000 Hz to 1600 Hz
20
40
µs
f = 1600 Hz to 2600 Hz
55
75
f = 2600 Hz to 2800 Hz
80
105
f = 2800 Hz to 3000 Hz
130
155
Receive delay, absolute (at 0 dBm0)
f = 1600 Hz
180
200
µs
f = 500 Hz to 1000 Hz
–40
–25
f = 1000 Hz to 1600 Hz
–30
–20
Receive delay, relative to absolute‡
f = 1600 Hz to 2600 Hz
70
90
µs
f = 2600 Hz to 2800 Hz
100
125
f = 2800 Hz to 3000 Hz
140
175
† All typical values are at VCC = 5 V, VBB = –5 V, and TA = 25°C.
‡ Absolute rms signal levels are defined as follows: VI = 1.2276 V = 0 dBm0 = 4 dBm at f = 1.02 kHz with RL = 600 Ω.
noise
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
UNIT
Transmit noise, C-message weighted
µ-law
VFXI = 0 V
9
14
dBrnC0
Transmit noise, psophometric weighted (see Note 4)
A-law
VFXI = 0 V
–78
–75
dBm0p
Receive noise, C-message weighted
µ-law
PCM code equals alternating positive
and negative zero.
2
4
dBrnC0
Receive noise, psophometric weighted
A-law
PCM code equals positive zero.
–86
–83
dBm0p
Noise, single frequency
VFXI+ = 0 V,
f = 0 kHz to 100 kHz,
Loop-around measurement
–53
dBm0
† All typical values are at VCC = 5 V, VBB = –5 V, and TA = 25°C.
NOTE 4: Measured by extrapolation from the distortion test result. This parameter is achieved through use of patented circuitry and is not
recommended for applications in which the composite signals on the transmit side are below – 55 dBm0.
crosstalk
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
UNIT
Crosstalk, transmit to receive
f = 300 Hz to 3000 Hz,
DR at steady PCM code
–90
–75
dB
Crosstalk, receive to transmit (see Note 5)
VFXI = 0 V,
f = 300 Hz to 3000 Hz
–90
–75
dB
† All typical values are at VCC = 5 V, VBB = –5 V, and TA = 25°C.
NOTE 5: Receive-to-transmit crosstalk is measured with a – 50 dBm0 activation signal applied at VFXI +.
power amplifiers
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
M
i
0 dB 0
l
l f
b tt
th
±0 1 dB li
it
Bl
d l
d R
td
RL = 600 Ω
1.65
Maximum 0 dBm0 rms level for better than
±0.1 dB linearity
over the range if – 10 dBm0 to 3 dBm0
Balanced load,RL, connected
between VFRO and Gnd
RL = 1200 Ω
1.75
V
over the range if – 10 dBm0 to 3 dBm0
between VFRO and Gnd
RL = 30 kΩ
2
Vrms
Signal/distortion
RL = 600 Ω
50
dB


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