THS7103 Datasheet, PDF (5/9 Pages) Texas Instruments – ADSL (ISDN) CENTRAL OFFICE LINE INTERFACE DRIVER/RECEIVER

THS7103
SLOS387 − DECEMBER 2001
driver characteristics, VCCL = VCCOPx = 15 V, VCCON = GND, R_S = 1.35 Ω, N = 1, R_L = 27 Ω^†,
C_i = 0.1 µF, T_A = 25°C
PARAMETER
RIN−Tx Input resistance (single-ended)
VA
Output voltage
VA/VIN
VB/VIN
Gain (see Note 3 and Figure 1)
Differential output noise
Zo
Output impedance‡
Filter corner frequency
Out of band rejection (relative to the input signal)
Channel-to-channel mismatch
ICCL Supply current
TEST CONDITIONS
f = 1 MHz,
THD ≤ −31 dBc
f = 1 MHz
f ≅ 270 kHz (Peak frequency)
f = 1 MHz
f ≅ 270 kHz (Peak frequency)
200 kHz
f = 20 kHz to 1.1 MHz
HPF,
LPF
Ci = 0.1 µF
VO at f = 40 kHz,
VO at f = 6 MHz
f = 200 kHz to 800 kHz
Ci = 0.1 µF
f = 900 kHz to 1.1 MHz
Off, TXEN1 = 0, TXEN2 = 0
Low, TXEN1 = 1, TXEN2 = 0
Med., TXEN1 = 1, TXEN2 = 1
MIN
1.13
23.8
19.0
22.2
18.2
21.4
178
1.15
−10
−17.5
−0.15
−0.15
0.7
13.1
13.3
TYP
1.16
24.4
19.5
22.5
18.7
21.7
85
†
190
1.4
−14
−20.5
0
0.2
1
14.6
14.8
MAX UNIT
1.19 kΩ
Vpp
19.8
dB
22.8
19
dB
22
nV/√Hz
Ω
202 kHz
1.65 MHz
dB
0.35
dB
0.5
1.3
16.1
mA
16.3
ICCOP Supply current
High, TXEN1 = 0,
Off, TXEN1 = 0,
Low, TXEN1 = 1,
Med., TXEN1 = 1,
TXEN2 = 1
TXEN2 = 0
TXEN2 = 0
TXEN2 = 1
13.5
15 16.5
0 0.6 1.1
1.7 2.7 3.7
mA
6 7.5
9
High, TXEN1 = 0, TXEN2 = 1
11
13
15
† _{The test circuit of RS = 1.35 Ω, N = 1, and RL = 27 Ω is equivalent to a standard ADSL circuit with RS = 1.35 Ω, N = 1.9, and RL = 100 Ω.}
‡ _{Output impedance is given by Zo = 10 × RS.}
NOTES: 3. Due to the gain of the transmit path, the maximum input voltage should not exceed 3 Vpp or clipping and distortion occurs.
receiver characteristics, VCCL = VCCOPx = 15 V, VCCON = GND, R_S = 1.35 Ω, N = 1, R_L = 3.9 kΩ,
R_F = 5 kΩ, Gain = 26 dB, T_A = 25°C
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
VO Output voltage
Output noise
VI = 1 Vpp, f = 200 kHz
At f = 200 kHz
19
20
73
Vpp
nV/√Hz
Vn
Noise voltage (preamp input noise)
In
Noise current (preamp input noise)
Filter corner frequency
Out of band rejection (relative to input point A)
See Figure 1
f = 20 kHz
f = 20 kHz
VI = 0.5 Vpp
VO at f = 400 kHz
223.7
2.3
nV/√Hz
1.0
pA/√Hz
238 252.3 kHz
−6
dB
In-band ripple
Channel-to-channel mismatch
VO at f = 55 kHz and 103.5 kHz
f = 10 kHz to 145 kHz
−0.15
0.2 0.5 dB
0 0.15 dB
www.ti.com
5