stlc3040 STMicroelectronics, stlc3040 Datasheet - Page 40

• Manufacturer Part Number: stlc3040
• Description: Subscriber Line Interface Codec Filter, Cofislic
• Manufacturer: STMicroelectronics

STLC3040
IDLE_CHANNEL NOISE Rx/Tx (TTX off)
(Test Cond. 1)
OUT OF BAND NOISE (Test Cond. 2)
B[1..8] = 0
Z[1..3] = 0
40/49
R
R
X
Z
B
X
Z
CR[ 1] = 00
CR[ 2] = 00
CR[ 3] = 05
CR[ 4] = F9
CR[ 5] = 60
CR[ 6] = 50
K = 05A0h
GR = FFh
GX = B4h
CR[ 3] = A5
CR[ 1] = 00
CR[ 2] = 00
CR[ 4] = F9
CR[ 5] = 60
CR[ 6] = 50
K = 05A0h
GR = FFh
GX = FFh
| 09CDh
| 042Dh
| 0919h
| 39BBh
| 178Dh
| 0E31h
| 2922h
| 0CCFh
| 39D3h
| 0859h
| 21EDh
| 000Dh
| 3F0Eh
| 00AB
| 039Eh
| 0483h
| 044Fh
| 03AB
| 3C00h
| 1000h
| 0h
| 0h
| 0h
| 1000h
| 0h
| 0h
| 0h
| 39D3h
| 0859h
| 21EDh
(-1581) |
(2137) |
(-7699) |
(2509) |
(1069) |
(2329) |
(-1605)|
(6029) |
(3633) |
(-5854) |
(3279) |
(-1581) |
(2137) |
(-7699) |
(13)
(-242) |
(171)
(926)
(1155) |
(1103) |
(939)
(-1024) |
(4096) |
(0)
(0)
(0)
(4096) |
(0)
(0)
(0)
CR[12] = FF
CR[10] = 00
CR[11] = 10
CR[ 7] = 1C
CR[ 8] = 08
CR[ 9] = 2F
CR[12] = FF
CR[ 7] = 1C
CR[10] = 00
CR[11] = 10
CR[ 9] = 2F
CR[ 8] = 08
(1440)
|
|
|
|
|
|
(255)
(180)
|
|
|
|
(1440)
(255)
(255)
DD = idle code (A_law)
Id_ch_noise at Tx = dBm0 level at DU
Id_ch_noise at Rx = voltage (rms) at Vout
( Vrms) (psophometric weighted)
DD 5 frequencies between 2.8 and 3.8kHz + single
OBN on Vout =
OBN (out of band noise) min 31dB
VRAC = 5 frequencies between 32kHz
OBN on Tx = dBm0 level at 1kHz - dBm0 level
at each frequency reflected in band.
OBN (out of band noise) min 25dB.
frequency at 1kHz, the total amplitude is 0dBm0
(in this condition the expected value on 2W at
1kHz is about 23mVrms)
Out of band signal at Analog output (Rx)
3.8kHz and 32kHz - 2.8kHz + single frequency
at 1kHz.
The total amplitude to be applied on VRAC
(pin 16) is calculated applying the same
law of the absolute gain. V
Out of band signal at Digital output (Tx)
V
out
@ 32KHz
V
out
@ 1kHz
RACpicco
5freq.
= 133mV.