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TLC32044C, TLC32044E, TLC32044I, TLC32044M TLC32045C, TLC32045I
VOICE-BAND ANALOG INTERFACE CIRCUITS
SLAS017F – MARCH 1988 – REVISED MAY 1995
22
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D/A channel signal-to-distortion ratio (see Note 7)
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
VI = –6 dB to 0 dB
VI = –12 dB to –6 dB
VI = –18 dB to –12 dB
VI = –24 dB to –18 dB
VI = –30 dB to –24 dB
VI = –36 dB to –30 dB
VI = –42 dB to –36 dB
VI = –48 dB to –42 dB
VI = –54 dB to –48 dB
VI = –6 dB to 0 dB
VI = –12 dB to –6 dB
VI = –18 dB to –12 dB
VI = –24 dB to –18 dB
VI = –30 dB to –24 dB
VI = –36 dB to –30 dB
VI = –42 dB to –36 dB
VI = –48 dB to –42 dB
VI = –54 dB to –48 dB
58
58
56
D/A h
D/A channel signal-to-distortion ratio, TLC32044C, TLC32044E, TLC32044I,
TLC32044M
l i
l t di t ti
TLC32044C TLC32044E TLC32044I
50
44
38
32
26
20
dB
55
55
53
47
D/A channel signal-to-distortion ratio, TLC32045C, TLC32045I
41
35
29
23
17
NOTE 7: The test condition VI is a 1-kHz input signal with an 8-kHz conversion rate (0 dB relative to Vref). The load impedance for the DAC is
600
(300
for TLC32044M).
gain and dynamic range
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Absolute transmit gain tracking error while transmitting
into 600
–48-dB to 0-dB signal range,
See Note 8
±
0.05
±
0.15
dB
Absolute transmit gain tracking error while transmitting
into 300
, TLC32044M
–48-dB to 0-dB signal range,
See Note 8
TA = 25
°
C,
±
0.05
±
0.25
dB
Absolute transmit gain tracking error while transmitting
into 300
, TLC32044M
–48-dB to 0-dB signal range,
TA = –55
°
C to 125
°
C,
–48-dB to 0-dB signal range,
See Note 8
±
0.4
dB
Absolute receive gain tracking error
See Note 8
TA = 25
°
C,
±
0.05
±
0.15
dB
Absolute receive gain tracking error, TLC32044M
–48-dB to 0-dB signal range,
See Note 8
±
0.05
±
0.25
dB
Absolute receive gain tracking error, TLC32044M
–48-dB to 0-dB signal range,
TA = –55
°
C to 125
°
C,
Signal input is a –0.5-dB,
Signal input is a 0-dB,
See Note 8
±
0.4
dB
Absolute gain of the A/D channel
Absolute gain of the D/A channel
All typical values are at TA = 25
°
C.
NOTE 8: Gain tracking is relative to the absolute gain at 1 kHz and 0 dB (0 dB relative to Vref).
1-kHz sinewave
1-kHz sinewave
0.2
–0.3
dB