821054PQF Integrated Device Technology (Idt), 821054PQF Datasheet - Page 39

• Manufacturer Part Number: 821054PQF
• Description: Audio Codec 4ADC / 4DAC 64-Pin PQFP
• Manufacturer: Integrated Device Technology (Idt)
• Type: PCMr

Specifications of 821054PQF

• Package: 64PQFP
• Number Of Channels: 4ADC /4 DAC
• Number Of Dacs: 4
• Operating Supply Voltage: 5 V

IDT821054 QUAD PROGRAMMABLE PCM CODEC WITH MPI INTERFACE
7.6
7.7
7.8
Note: Crosstalk into transmit channels (VIN) can be significantly affected by parasitic capacitive coupling from VOUT outputs. PCB layouts should be arranged to minimize the parasitics.
Parameter
Parameter
Parameter
PSR
XT
XT
XT
XT
XT
XT
PSR
SOS
N
N
N
N
N
RC
XC
XP
RP
RS
X-R
R-X
R-R
X-R
R-X
X-X
X
R
NOISE
INTERCHANNEL CROSSTALK
INTRACHANNEL CROSSTALK
Transmit noise, C-message weighted for µ-law
Transmit noise, psophometrically weighted for A-law
Receive noise, C-message weighted for µ-law
Receive noise, psophometrically weighted for A-law
Noise, single frequency
Power supply rejection, transmit
Power supply rejection, receive
Spurious out-of-band signals at VOUT, relative to
input PCM code applied:
Transmit to receive crosstalk
Receive to transmit crosstalk
Transmit to transmit crosstalk
Receive to receive crosstalk
Transmit to receive crosstalk
Receive to transmit crosstalk
f = 0 kHz to 100 kHz
f = 300 Hz to 3.4 kHz
f = 3.4 kHz to 20 kHz
f = 300 Hz to 3.4 kHz
f = 3.4 kHz to 20 kHz
f = 4.6 kHz to 20 kHz
f = 20 kHz to 50 kHz
Description
Description
Description
Min.
Min.
Typ.
Typ.
−85
−85
−85
−85
−80
−80
Min.
40
25
40
25
Max.
Max.
−78
−80
−78
−80
−70
−70
39
Typ.
Units
Units
dB
dB
dB
dB
dB
dB
Max.
−70
−80
−53
−40
−30
300 Hz to 3400 Hz, 0 dBm0 signal into VIN of the interfering
channel. Idle PCM code into the channel under test.
300 Hz to 3400 Hz, 0 dBm0 PCM code into the interfering channel.
VIN = 0 Vrms for the channel under test.
300 Hz to 3400 Hz, 0 dBm0 signal into VIN of the interfering
channel. VIN = 0 Vrms for the channel under test.
300 Hz to 3400 Hz, 0 dBm0 PCM code into the interfering channel.
Idle PCM code into the channel under test.
300 Hz to 3400 Hz, 0 dBm0 signal into VIN. Idle PCM code into
DR.
300 Hz to 3400 Hz, 0 dBm0 PCM code into DR. VIN = 0 Vrms.
15
10
dBrnC0
dBrnC0
dBm0p
dBm0p
dBm0
Units
dB
dB
dB
dB
dB
dB
INDUSTRIAL TEMPERATURE RANGE
VIN = 0 Vrms, tested at VOUT
VDD = 5.0 VDC+100 mVrms
VDD = 5.0 VDC+100 mVrms, PCM code is
positive one LSB
0 dBm0, 300 Hz to 3400 Hz input
Test Conditions
Test Conditions
Test Conditions