Datasheet

PCM2704C, PCM2705C
PCM2706C, PCM2707C
SBFS036A –AUGUST 2011–REVISED JULY 2012 www.ti.com
Table 2. Pin Descriptions: PJT Package (PCM2706C/PCM2707C)
TERMINAL
NAME NO. I/O DESCRIPTION
AGNDL 26 — Analog ground for headphone amplifier of L-channel
AGNDR 31 — Analog ground for headphone amplifier of R-channel
CK 14 O Clock output for external ROM (PCM2706C). Must be left open (PCM2707C).
D+ 23 I/O USB differential input/output plus
(1)
D– 22 I/O USB differential input/output minus
(1)
DGND 20 — Digital ground
DOUT 17 O S/PDIF output/I
2
S data output
DT 15 I/O Data input/output for external ROM (PCM2706C). Must be left open with pull-up resistor (PCM2707C).
(1)
FSEL 9 I Function select (low: I
2
S data output, high: S/PDIF output)
(1)
FUNC0 5 I/O HID key state input (next track), active high (FSEL = 1). I
2
S LR clock output (FSEL = 0).
(2)
FUNC1 19 I/O HID key state input (previous track), active high (FSEL = 1). I
2
S bit clock output (FSEL = 0).
(2)
FUNC2 18 I/O HID key state input (stop), active high (FSEL = 1). I
2
S system clock output (FSEL = 0).
(2)
FUNC3 4 I HID key state input (play/pause), active high (FSEL = 1). I
2
S data input (FSEL = 0).
(2)
HID0/MS 6 I HID key state input (mute), active high (PCM2706C). MS input (PCM2707C).
(2)
HID1/MC 7 I HID key state input (volume up), active high (PCM2706C). MC input (PCM2707C).
(2)
HID2/MD 8 I HID key state input (volume down), active high (PCM2706C). MD input (PCM2707C).
(2)
Host detection during self-powered operation (connect to V
BUS
). Max power select during bus-powered
HOST 3 I
operation. (low: 100 mA, high: 500 mA).
(3)
PGND 1 — Analog ground for DAC, OSC, and PLL
PSEL 16 I Power source select (low: self-power, high: bus-power)
(1)
SSPND 11 O Suspend flag, active low (low: suspend, high: operational)
TEST 10 I Test pin. Must be set high
(1)
V
BUS
24 — Connect to USB power (V
BUS
) for bus-powered operation. Connect to V
DD
for self-powered operation.
V
CCL
27 — Analog power supply for headphone amplifier of L-channel
(4)
V
CCP
2 — Analog power supply for DAC, OSC, and PLL
(4)
V
CCR
30 — Analog power supply for headphone amplifier of R-channel
(4)
V
COM
32 — Common voltage for DAC (V
CCP
/2). Connect decoupling capacitor to PGND.
V
DD
21 — Digital power supply
(4)
V
OUT
L 28 O DAC analog output for L-channel
V
OUT
R 29 O DAC analog output for R-channel
XTI 12 I Crystal oscillator input
(1)
XTO 13 O Crystal oscillator output
ZGND 25 — Ground for internal regulator
(1) LV-TTL level.
(2) LV-TTL level with internal pulldown.
(3) LV-TTL level, 5-V tolerant.
(4) Connect decoupling capacitor to GND. Supply 3.3 V for self-powered applications.
8 Submit Documentation Feedback Copyright © 2011–2012, Texas Instruments Incorporated
Product Folder Link(s): PCM2704C PCM2705C PCM2706C PCM2707C