PCM186X Datasheet, PDF (10/115 Pages) Texas Instruments – Home Theater and TV

PCM1860, PCM1862, PCM1864, PCM1864-Q1
SLASE55A – NOVEMBER 2014 – REVISED DECEMBER 2014
www.ti.com
8.6 Electrical Characteristics, Primary PGA and ADC AC Performance
all specifications at T_A = 25°C, AVDD = 3.3V, DVDD = 3.3V, IOVDD = 3.3V, Master Mode, Single Speed Mode, f_S = 48kHz,
system clock = 256×f_S, 24-bit data (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
Input Channel Signal to Noise ratio
0 dB PGA Gain, –60dB input signal,
Master Mode. at DIFF Input
97
103
dB
Input Channel Signal to Noise ratio 32 dB PGA Gain, –86dB input
at 32 dB
signal, Master Mode at DIFF Input
90
dB
Input Channel THD+N
0 dB PGA Gain, –1dB input signal,
Master Mode at DIFF Input
–85
–93
dB
Input Channel THD+N at 32 dB
32 dB PGA Gain, –33dB input
signal, Master Mode at DIFF Input
–84
dB
L channel to R channel separation 0 dB PGA Gain, –1dB input signal,
line input
Master Mode
–105
dB
L channel to R channel separation 20 dB PGA Gain, –1dB input signal,
mic input
Master Mode
–105
dB
L1 channel to L2 channel separation 0 dB PGA Gain, –1dB input signal,
line input
Master Mode
–105
dB
R1 channel to R2 channel
separation line input
0 dB PGA Gain, –1dB input signal,
Master Mode
–105
dB
L1 channel to L2 channel separation 20 dB PGA Gain, –1dB input signal,
mic input
Master Mode
–105
dB
R1 channel to R2 channel
separation mic input
20 dB PGA Gain, –1dB input signal,
Master Mode
–105
dB
Range of the analog PGA
–12 to +12 dB (1 dB STEP) , 20 dB
and 32 dB
–12 ⁽¹⁾
32
dB
Accuracy of the PGA + ADC
0.5
dB
Matching between PGA + ADCs
onchip
0.05
dB
Full Scale Voltage Input per input
pin
Single Ended Mode
2.1 V_RMS
Full Scale Voltage Input per input
pin
Differential Input Mode (2.1 V_RMS
Per Pin, Out Of phase)
4.2 V_RMS
Input Channel Signal to Noise ratio
0 dB PGA Gain, –60 dB input signal,
Master Mode. at SE input
103
dB
Input Channel Signal to Noise ratio 32 dB PGA Gain, –92 dB input
at 32dB
signal, Master Mode at SE input
75
dB
Input Channel THD+N
0 dB PGA Gain, –1 dB input signal,
Master Mode at SE input
87
dB
Input Channel THD+N at 32dB
32 dB PGA Gain, –33 dB input
signal, Master Mode at SE input
68
dB
Input Impedance per analog input
pin
PCM1864
PCM1860/2
10
kΩ
20
CMRR
Common Mode Rejection Ratio
Differential Input, 1 kHz signal on
both pins and measure level at
output.
56
dB
(1) Specified by design.
10
Submit Documentation Feedback
Copyright © 2014, Texas Instruments Incorporated
Product Folder Links: PCM1860 PCM1862 PCM1864 PCM1864-Q1